p235 #31-38
31.
Propane
Pentane
32. There is a single covalent bond
33. Same type of alkanes but different forms
34. (on paper)
35. Straight chain alkane
36. Both are correct.
37. Paper
38.
Short straight chain because it has less carbons and hydrogens
Long branched chain because it has more carbons and hydrogens
Short branched chain because its formation of carbons and hydrogens is more complex.
Thursday, July 21, 2011
Homework #10
p361 # 14 - 20
14. CO2 and water vapor are greenhouse gases.
15.
a. Burning gas and coal, photosynthesis, and burning fossil fuel.
b. Refining fossil fuels, raising livestock, riding animal wastes
16.
a. For it to be hotter, there would need to be more greenhouse gases on earth
b. For it to be cooler, there would need to be less greenhouse gases on earth
17. Glass is much warmer because in allows the heat in, but once in they are trapped which leads to the temperature rising.
18. (on paper)
19. natural gases, CO2, calcium carbonate
20. Carbons can because they have human as well as plant activity.
14. CO2 and water vapor are greenhouse gases.
15.
a. Burning gas and coal, photosynthesis, and burning fossil fuel.
b. Refining fossil fuels, raising livestock, riding animal wastes
16.
a. For it to be hotter, there would need to be more greenhouse gases on earth
b. For it to be cooler, there would need to be less greenhouse gases on earth
17. Glass is much warmer because in allows the heat in, but once in they are trapped which leads to the temperature rising.
18. (on paper)
19. natural gases, CO2, calcium carbonate
20. Carbons can because they have human as well as plant activity.
Extra Credit
Singapore has a population said to be 5m people. With a number so large, its land mass is not big enough to support all the inhabitants. With a water being an issue, the Singaporean government has fallen under the thought of using distilled water. Though the distillation process is costly, the government has teamed up with a German engineering company that claims they can cut the price range in half. Making distillation a reasonable idea. They are running one demonstration plant now, however the construction of the full plant has already begun and its on its way to changing the lives of many in Singapore.
Wednesday, July 20, 2011
Blog Question: For you, what has been the most valuable learning from summer Chemistry (and why)?
I think that my most valuable thing I learned from this summer chemistry course was responsibility. I feel like in order to be successful in this class, the key thing was responsibility. If it was doing homework every night and posting it on your blog. Or studying in order to do well on the quiz at the end of the week. In this class there was a lot of work that was pushed into six weeks, so responsibility was the greatest role in success, and learning.
Tuesday, July 19, 2011
Homework #9
p344 #1 - 4
1. Infrared radiation cannot get into our atmosphere as well as ultraviolet rays.
2. Visible radiation energizes electrons, this is what makes sunsets red.
3. In humid areas the air is more expanded, in dry areas can be cool or warm based on the climate,
4.
a. Hotter in the day because of the earths more dense.
b. Colder because the earth would be less dense.
1. Infrared radiation cannot get into our atmosphere as well as ultraviolet rays.
2. Visible radiation energizes electrons, this is what makes sunsets red.
3. In humid areas the air is more expanded, in dry areas can be cool or warm based on the climate,
4.
a. Hotter in the day because of the earths more dense.
b. Colder because the earth would be less dense.
Monday, July 18, 2011
Homework #8
p204 #7-13
7. Alloy is a new made substance physically combined by different metals.
8. Steel, this is made from iron, and carbon. Brass, this is made from zinc and copper.
9. Carbon
10. Steel, which is used mainly in kitchen wear and cooking supplies, is 99% and 1% carbon does not rust.
11. Metalliods are semiconductors because they are in between metals and nonmetals. The can barely conduct electricty and be malleable .
12. Gallium, Arsenic, sillicon
13. Doping technology is so that we can make less reactive elements more reactive.
7. Alloy is a new made substance physically combined by different metals.
8. Steel, this is made from iron, and carbon. Brass, this is made from zinc and copper.
9. Carbon
10. Steel, which is used mainly in kitchen wear and cooking supplies, is 99% and 1% carbon does not rust.
11. Metalliods are semiconductors because they are in between metals and nonmetals. The can barely conduct electricty and be malleable .
12. Gallium, Arsenic, sillicon
13. Doping technology is so that we can make less reactive elements more reactive.
Thursday, July 14, 2011
Zoobotics (Extra Credit)
Until now, when people think of robots they think of the onlys with claws that crash into eachother, or the ones with human likes qualities, much like C3PO. Companies like Sony have made robot dogs that too most can just be considered as "toys". But no longer, sudden advances in this technologic field have created something that will no longer associate the word "toy" with robots. Cecillia Laschi of Sant'Anna School of Advanced studies in Pisa have taken it upon themselves to create a robotic octopus. The team took the time to study the body of an octopus themsleves, in order to properly remake it in robot form. Once they were done with this study they made a casting out of sillicone and was fitted with pressure sensors. Inside the cast are cables made of elastic nickel titanium alloy. This allows the arm to wrap around much like an octopus would. However; sense there is only one arm made it is really a monopus. But in the next two years Laschi plans on making 7 more arms, and complete the project. This is only one of many different examples of Zoobotics. Other groups are engineering different fish, geckos, and shrews. With advances in technology all this may be a possibility to see in our future.
http://www.economist.com/node/18925855
Homework #7
p182 #18 -21
18.
a. When you reuse something, the looks or use for it do not change. However; when you recycle you can completely change its physical appearence without changing its chemical structure.
b. Reusing: Keep the same water bottle and use it over and over again.
Recycle: Melting a plastic water bottle to make a different plastic appliance such as a container.
19.
a. fresh water and air, plants, soil, and animals are all renewable resources
b. metals, coal, natural gases, and pertoleuom are nonrenewable.
20 .
a. Reusing
b. Recycling
c. Recycling
21. Less stuff happens to light bulbs then paper. Which makes light bulbs to be recycled much more than paper. They live longer in the renewal procecdure.
p204 #1-6
1. Allotropes are the same elements that have been changed but still holds the same physical and chemical properties of the element.
2. Oxygen and Phospherous
3.
a. the properties are different because a diamond can not be destroyed and shiny, while lead and coal are dull and toxic.
b. Properties are different because of different physical appereance
c. A diamond gets its worth through its appeareance, other things that are not good to visually see are not worth that much
4. Some things are not made from natural resources because the reactivity is so high its safer to be made in a lab. Silver and gold which have low reactivity are found in nature.
5. Advantages are all the control we have as the creators but it comes with side effects.
6. Plastic can be altered to be hard for sturdiness and it ca be made maeleable and soft.
18.
a. When you reuse something, the looks or use for it do not change. However; when you recycle you can completely change its physical appearence without changing its chemical structure.
b. Reusing: Keep the same water bottle and use it over and over again.
Recycle: Melting a plastic water bottle to make a different plastic appliance such as a container.
19.
a. fresh water and air, plants, soil, and animals are all renewable resources
b. metals, coal, natural gases, and pertoleuom are nonrenewable.
20 .
a. Reusing
b. Recycling
c. Recycling
21. Less stuff happens to light bulbs then paper. Which makes light bulbs to be recycled much more than paper. They live longer in the renewal procecdure.
p204 #1-6
1. Allotropes are the same elements that have been changed but still holds the same physical and chemical properties of the element.
2. Oxygen and Phospherous
3.
a. the properties are different because a diamond can not be destroyed and shiny, while lead and coal are dull and toxic.
b. Properties are different because of different physical appereance
c. A diamond gets its worth through its appeareance, other things that are not good to visually see are not worth that much
4. Some things are not made from natural resources because the reactivity is so high its safer to be made in a lab. Silver and gold which have low reactivity are found in nature.
5. Advantages are all the control we have as the creators but it comes with side effects.
6. Plastic can be altered to be hard for sturdiness and it ca be made maeleable and soft.
Molecules Lab Questions
1.
a. The observations lead us to believe that the reaction was incomplete because the copper oxide quickly reacted with the HCl.
b. We would have been more efficient with the heating and sturring process, more oxygen would have reacted with the copper making CuO.
2.
a. The original mass was 1.07 g
b. The left over mass was 0.11 g
3.
a. ?? (Help)
b. (Unable to do)
4.
a.After we added zinc, the solution caused the zinc itself to start bubbling and fizzing, eating away at the zinc.
b. The reactants between the zinc and the solution were caused by the different charges in the zinc ions and the solution.
c. The color can be used because once the Cu2(plus) ions have been removed, the color should go back to its original state.
5.
a. The CuCl2 solution was used up in order recover the Cu metal from the solution.
b. The CuCl2 solution into filtration, the zinc was left behind and desposed of, and the copper was recovered.
a. The observations lead us to believe that the reaction was incomplete because the copper oxide quickly reacted with the HCl.
b. We would have been more efficient with the heating and sturring process, more oxygen would have reacted with the copper making CuO.
2.
a. The original mass was 1.07 g
b. The left over mass was 0.11 g
3.
a. ?? (Help)
b. (Unable to do)
4.
a.After we added zinc, the solution caused the zinc itself to start bubbling and fizzing, eating away at the zinc.
b. The reactants between the zinc and the solution were caused by the different charges in the zinc ions and the solution.
c. The color can be used because once the Cu2(plus) ions have been removed, the color should go back to its original state.
5.
a. The CuCl2 solution was used up in order recover the Cu metal from the solution.
b. The CuCl2 solution into filtration, the zinc was left behind and desposed of, and the copper was recovered.
Homework #6
p180 #13 - 17
13.
a. 6 moles are needed
6. 5 moles are made
c. 5 moles of Pb
14.
a. 17 moles
b. 1,863 g
c. 952 g
d. 669 g
15. You have to divide the number of oxygen atoms by all the atoms in the compound. Making it 72%
16.
87% silver
53% aluminium
40% calcium
17. 68% lead
50% PbSO4
10% lead
help???
13.
a. 6 moles are needed
6. 5 moles are made
c. 5 moles of Pb
14.
a. 17 moles
b. 1,863 g
c. 952 g
d. 669 g
15. You have to divide the number of oxygen atoms by all the atoms in the compound. Making it 72%
16.
87% silver
53% aluminium
40% calcium
17. 68% lead
50% PbSO4
10% lead
help???
Tuesday, July 12, 2011
Homework #5
p180 #1-12
1. The law of conservation of matter is that matter cannot be created nor destroyed
2. Scientific law reviews summarizes what has been viewed
3. Using up and throwing away both dont follow along with the law of conservation of matter.
4.
a.Unbalanced
b.Unbalanced
c.Balanced
5.
a. 3
b. 2
c. 1
6.
1,3,1,3
2,3,2,2
2,3,2
7.
1,3,2,3
8. They are conserved
The student did not make a correct equation
(on paper)
9. ??
10.
32g
48g
100g
58g
180g
11. Putting together two elements would make a compound
12.
a. 1
b. .5
c. .1
d. .03
1. The law of conservation of matter is that matter cannot be created nor destroyed
2. Scientific law reviews summarizes what has been viewed
3. Using up and throwing away both dont follow along with the law of conservation of matter.
4.
a.Unbalanced
b.Unbalanced
c.Balanced
5.
a. 3
b. 2
c. 1
6.
1,3,1,3
2,3,2,2
2,3,2
7.
1,3,2,3
8. They are conserved
The student did not make a correct equation
(on paper)
9. ??
10.
32g
48g
100g
58g
180g
11. Putting together two elements would make a compound
12.
a. 1
b. .5
c. .1
d. .03
Manganese Metal Project
For my Metal Report I luckily was given Manganese! Here are some great facts and information I have learned.
Manganese is a transition metal with the symbol Mn. The atomic weight is 54.9380, and has an atomic number of 25. Mn contains 30 neutrons, 25 protons and 25 electrons. It is utilizes in food consumption and some industrial uses. Mn is used to make some characteristics such as strength, hardness, and durability. Manganese is also a main component in steel. Really, steel can not be made with out manganese because it is a big part of steel itself. Manganese is also used to create color in glass, it plays a role in why quartz is somewhat purple. Mn makes a lot of coloring in many substances, however; most manganese oxide turns out to be black. Still, it is essential for the production of iron and steel. Manganese slowly combines with oxygen to make manganese oxide, and at higher temp. it reacts rapidly. When it is heated, manganese gives off a bright white light. Mn reacts slowly with cold water, but faster as the temperature rises. It does in fact react with most acids, resulting in the release of hydrogen gas. Also combining with fluorine and chloride making manganese difluoride and manganese dichloride.
( Manganese was found in some cave paintings in France that were 16, 000 years old )
Manganese can be made in a scientific lab, and is found around the earth. Mn is reactive when pure, and if in powder form it can burn oxygen.
Manganese is a transition metal with the symbol Mn. The atomic weight is 54.9380, and has an atomic number of 25. Mn contains 30 neutrons, 25 protons and 25 electrons. It is utilizes in food consumption and some industrial uses. Mn is used to make some characteristics such as strength, hardness, and durability. Manganese is also a main component in steel. Really, steel can not be made with out manganese because it is a big part of steel itself. Manganese is also used to create color in glass, it plays a role in why quartz is somewhat purple. Mn makes a lot of coloring in many substances, however; most manganese oxide turns out to be black. Still, it is essential for the production of iron and steel. Manganese slowly combines with oxygen to make manganese oxide, and at higher temp. it reacts rapidly. When it is heated, manganese gives off a bright white light. Mn reacts slowly with cold water, but faster as the temperature rises. It does in fact react with most acids, resulting in the release of hydrogen gas. Also combining with fluorine and chloride making manganese difluoride and manganese dichloride.
( Manganese was found in some cave paintings in France that were 16, 000 years old )
Manganese was founded in 1774. Its not combustible but can enhance combustibility in other substances. Mn happens to be very expensive and is highly needed. It can be found in tiny amounts of the earths water. Its found everywhere and is one of the three toxic essential trace elements. Which means that the body needs it to survive but if there is too much it can be very dangerous in the body.
Sunday, July 10, 2011
Homework #4
p151 #9 - 22
9. They are more difficult to refine because they can react so easily, like with particles in the air. And with not so reactive metals they can be refine with out easily being contaminated again.
10. Zinc and copper because those metals are not very reactive. Magnesium is hard to process because of its flamability.
11. Because they can react with oxygen due to there high reactivity levels.
12. Calcium with chromium chloride due to the fact that chromium chloride is less reactive than clacium.
13. The second one will most likely happen because zinc is more reactive than silver.
14. The iron spoon is more reactive then lead nitrate, therefore they will react.
(on paper)
15. Oxidation : When an ion gains one or more electrons
Reduction : When an ion loses one or more electrons
16. (on paper)
17.
a. reduction
b. oxidation
c. reduction
18. Zinc was oxidized
Nickel was reduced
Zinc
19. The postassium was oxidized
9. They are more difficult to refine because they can react so easily, like with particles in the air. And with not so reactive metals they can be refine with out easily being contaminated again.
10. Zinc and copper because those metals are not very reactive. Magnesium is hard to process because of its flamability.
11. Because they can react with oxygen due to there high reactivity levels.
12. Calcium with chromium chloride due to the fact that chromium chloride is less reactive than clacium.
13. The second one will most likely happen because zinc is more reactive than silver.
14. The iron spoon is more reactive then lead nitrate, therefore they will react.
(on paper)
15. Oxidation : When an ion gains one or more electrons
Reduction : When an ion loses one or more electrons
16. (on paper)
17.
a. reduction
b. oxidation
c. reduction
18. Zinc was oxidized
Nickel was reduced
Zinc
19. The postassium was oxidized
mercury has been reduced
postassium
20. (on paper)
21. Electrometallurgy is a electrical current supplying electrons to metal ion
Pyrometallurgy uses thermal energy to supply electrons
Hydrometallurgy uses a water solution to dissolve metal materials and get elements like gold
22. Electrometallurgy
Pyrometallurgy
Friday, July 8, 2011
Homework #3
p132 #26 - 28, 29 - 34
26. metallic elements
27. Noble gases barely gain or lose electrons, showing how they are not very reactant. Elements who lose or gain electrons are usually the ones that are most reactive.
28.
a. cation
b. cation
c. anion
d. cation
e. anion
f. cation
g. cation
h. anion
29. a is closer to b
30. 200 ppm
31. a. chemically, like the rust of iron.
b. physical, because that wont change the chemical makeup.
c. chemical
32.
Bromine
Sillicon
33. All the info will help get to an answer.
34. It would not. due to the elements placement
p151 # 1 - 8
1. Hydrogen and Oxygen
2.
a. Crust, mantle, core
b. lithosphere
3.
mexico
japan
china
4. China
5. Have elements
6. The way the ore is found, the amount of it found, and the type of mining used.
7. Type of mining to get gold. Now there are newer and better ways to getting gold.
8. There needs to be a good amount of ore to find.
26. metallic elements
27. Noble gases barely gain or lose electrons, showing how they are not very reactant. Elements who lose or gain electrons are usually the ones that are most reactive.
28.
a. cation
b. cation
c. anion
d. cation
e. anion
f. cation
g. cation
h. anion
29. a is closer to b
30. 200 ppm
31. a. chemically, like the rust of iron.
b. physical, because that wont change the chemical makeup.
c. chemical
32.
Bromine
Sillicon
33. All the info will help get to an answer.
34. It would not. due to the elements placement
p151 # 1 - 8
1. Hydrogen and Oxygen
2.
a. Crust, mantle, core
b. lithosphere
3.
mexico
japan
china
4. China
5. Have elements
6. The way the ore is found, the amount of it found, and the type of mining used.
7. Type of mining to get gold. Now there are newer and better ways to getting gold.
8. There needs to be a good amount of ore to find.
Thursday, July 7, 2011
NBA Shutdown (Extra Credit)
http://www.economist.com/node/18928873
Semester 2 Homework #1
1.
a. Physical
b. Physical
c. Chemical
d. Physical
2.
a. Physical
b. Physical
c. Physical
d. Chemical
3. a. Physical
b. Chemical
c. Physical
d. Physical
4. a. Chemical
b. Physical
c. Chemical
d. Chemical
5. An animal turns brown because the air chemically change the apple which alter its physical looks.
6. a. Pour, then continue baking.
b. The ingredients in the bowl going into the bowl is a chemical and physical change.
7. metals
nonmetals
metals
metals
8. metal
metalloid
nonmetal
metal
9. Sillicon (Si) Germanium (Ge)
10. Brittleness and nonconductivity
11. Durable, solid, have high metling points
a. Physical
b. Physical
c. Chemical
d. Physical
2.
a. Physical
b. Physical
c. Physical
d. Chemical
3. a. Physical
b. Chemical
c. Physical
d. Physical
4. a. Chemical
b. Physical
c. Chemical
d. Chemical
5. An animal turns brown because the air chemically change the apple which alter its physical looks.
6. a. Pour, then continue baking.
b. The ingredients in the bowl going into the bowl is a chemical and physical change.
7. metals
nonmetals
metals
metals
8. metal
metalloid
nonmetal
metal
9. Sillicon (Si) Germanium (Ge)
10. Brittleness and nonconductivity
11. Durable, solid, have high metling points
Homework #2
p130 # 13 - 25
13.
a. group
b. family
14. K - Potassium
Na - Sodium
15. The first column on the right side has the noble gases.
All noble gases freeze at low temperatures.
Every noble gas doesnt really react.
16.
a. MgF2
b. GaP2
17. 60°C
18. Chlorine would have a lowering boiling point simply because it is a pure gas.
Iodine has a higher boiling point because it is a solid at room temperature.
19. a. Carbon
b. Carbon
Calcium - 20 protons/electrons
e. Platinum (78 protons)
Uranium - 92 protons/electrons
20. Beryllium - 4 protons/electrons 5 neutrons
Nitrogen - 7 protons/electrons 7 neutrons
Neon - 10 protons/ electrons 10 neutrons
21. Wrong because atoms dont lose or gain protons, only electrons.
22. a.Berylliums mass number is 9. Nitrogen 14. Neon 20
b. Beryllium
23. We dont know if its physical or chemical because there is not suffcient info given.
24. the electron is so small you dont need to measure weight.
25. 24 - 12 p/e
25 - 13 p 12 e
26. 13 p/e
13.
a. group
b. family
14. K - Potassium
Na - Sodium
15. The first column on the right side has the noble gases.
All noble gases freeze at low temperatures.
Every noble gas doesnt really react.
16.
a. MgF2
b. GaP2
17. 60°C
18. Chlorine would have a lowering boiling point simply because it is a pure gas.
Iodine has a higher boiling point because it is a solid at room temperature.
19. a. Carbon
b. Carbon
Calcium - 20 protons/electrons
e. Platinum (78 protons)
Uranium - 92 protons/electrons
20. Beryllium - 4 protons/electrons 5 neutrons
Nitrogen - 7 protons/electrons 7 neutrons
Neon - 10 protons/ electrons 10 neutrons
21. Wrong because atoms dont lose or gain protons, only electrons.
22. a.Berylliums mass number is 9. Nitrogen 14. Neon 20
b. Beryllium
23. We dont know if its physical or chemical because there is not suffcient info given.
24. the electron is so small you dont need to measure weight.
25. 24 - 12 p/e
25 - 13 p 12 e
26. 13 p/e
Friday, July 1, 2011
Extra Credit
Wednesday, June 29, 2011
Blog Post
Water Pollution v. Water Shortage
In my opinion water shortage is worse than water pollution. In todays society we have the technology to filter the polluted water on our planet. However; if there is no water to filter, and the water was clean but running out , the world would reach an end.
In my opinion water shortage is worse than water pollution. In todays society we have the technology to filter the polluted water on our planet. However; if there is no water to filter, and the water was clean but running out , the world would reach an end.
Tuesday, June 28, 2011
Homework #12
1SDS # 1 - 9 # 18 - 22
1. (Drawing)
2. Evaporation, followed by condensation, removes nearly all dissolved substances. Then bacterial action converts dissolved organic contaminants into a few simple compounds. Lastly, filtration through sand and gravel removes nearly all suspended matter.
3. The stickiness of the substance relates to floculation because just like in floculation, it sticks together with the particles so they are easily removed.
4. It brings the pH to a good level, neutralizing the acid in water.
5. 1ppm fluoride is added to stop tooth decay.
6. The advantages are that chlorinated water is clean and the chlorine is put in to kill any bacteria or impurities.
7. Yes, it can be harmful to human health because of the high concentrations in creates.
8. The chlorine kills anything harmful like bacteria which are bad for human health.
9. Filter through UV lighting and charcoal filtration.
#18 - 22
18. The process would stop everything, causing us to have a drop in our water supply.
19. There would be no gaseous water because the evaporation wouldnt occur.
20. The chlorine would be useful because it is harder to test for smaller amounts.
21. Sand filtration, screening step.
22.
a. 2 ppm
b. 14 ppm
c. 730 ppm
1. (Drawing)
2. Evaporation, followed by condensation, removes nearly all dissolved substances. Then bacterial action converts dissolved organic contaminants into a few simple compounds. Lastly, filtration through sand and gravel removes nearly all suspended matter.
3. The stickiness of the substance relates to floculation because just like in floculation, it sticks together with the particles so they are easily removed.
4. It brings the pH to a good level, neutralizing the acid in water.
5. 1ppm fluoride is added to stop tooth decay.
6. The advantages are that chlorinated water is clean and the chlorine is put in to kill any bacteria or impurities.
7. Yes, it can be harmful to human health because of the high concentrations in creates.
8. The chlorine kills anything harmful like bacteria which are bad for human health.
9. Filter through UV lighting and charcoal filtration.
#18 - 22
18. The process would stop everything, causing us to have a drop in our water supply.
19. There would be no gaseous water because the evaporation wouldnt occur.
20. The chlorine would be useful because it is harder to test for smaller amounts.
21. Sand filtration, screening step.
22.
a. 2 ppm
b. 14 ppm
c. 730 ppm
Monday, June 27, 2011
Blog Post (Polar Molecules)
Polar Molecules: a polar molecule is a molecule with regions of partial positive and negative charges, resulting in the uneven distribution of electrical charge.
An example is in water molecules. The electronegativity of oxygen is opposite of hydrogen (which is positive). This causes the molecule of water itself to be a " polar molecule " .
An example is in water molecules. The electronegativity of oxygen is opposite of hydrogen (which is positive). This causes the molecule of water itself to be a " polar molecule " .
Homework #11
#20 - 27 33, 35
20.
a. soft drink
b. black coffee
c. milk of magnesia
21. Two times more acidic.
22. When the pH is too low the fish egg's development is impaired, causing the ability to reproduce to go down. High pH levels are bad for living organisms because alkaline solutions are able to dissolve organic material, like skin and scales. Bodies of water with low pH levels tend to have an affect on the ions in fish, ultimately affecting us.
23. Polar molecules have opposite charges, an example is in water molecules. Oxygen is more electronegative than hydrogen, the electrons are pulled towards the oxygen atom. Nonpolar do not dissolve in polar solvents.
24. Lampoil because it is a nonpolar molecule. This means that the nonpolar lampoil would dissolve in the nonpolar substance.
25. Because table salt ( NaCl ) is a polar molecule.
26. " Like dissolves like " is talking about how polar molecules dissolve in polar substances and how nonpolar molecules dissolve in nonpolar substances.
27. Because the molecules are not the same. " like dissolves like "
33.
a. Nonpolar molecules
b. It is more effective because more of a variety of substances dissolve in nonpolar solvents.
35. Hydrogen because its has an already present +1 charge.
20.
a. soft drink
b. black coffee
c. milk of magnesia
21. Two times more acidic.
22. When the pH is too low the fish egg's development is impaired, causing the ability to reproduce to go down. High pH levels are bad for living organisms because alkaline solutions are able to dissolve organic material, like skin and scales. Bodies of water with low pH levels tend to have an affect on the ions in fish, ultimately affecting us.
23. Polar molecules have opposite charges, an example is in water molecules. Oxygen is more electronegative than hydrogen, the electrons are pulled towards the oxygen atom. Nonpolar do not dissolve in polar solvents.
24. Lampoil because it is a nonpolar molecule. This means that the nonpolar lampoil would dissolve in the nonpolar substance.
25. Because table salt ( NaCl ) is a polar molecule.
26. " Like dissolves like " is talking about how polar molecules dissolve in polar substances and how nonpolar molecules dissolve in nonpolar substances.
27. Because the molecules are not the same. " like dissolves like "
33.
a. Nonpolar molecules
b. It is more effective because more of a variety of substances dissolve in nonpolar solvents.
35. Hydrogen because its has an already present +1 charge.
Homework #10
9. 44g of water
10. 0.015 ppm
11. A water molecule is polar because it has a negative charge at the oxygen end and a positive charge at the hydrogen end. Having opposite charges cause them to attract, causing them to be titled polar molecules.
12. Molecules in water sometimes attract or repel based on which side meets up. If two of the same ends meet up with would repel, if two opposite ends met up they would attract. ( Opposites attract )
13.
a. Oxygen would attach with pottasium
b. Hydrogen would attach with bromine
14. Heavy metals have their name because the atomic mass is heavier than the regular metal elements.
15. It would damage your liver, nervous system, and the brain
16.
a. Lead can be in water pipes and paint
b. Mercury can be found in flourescent lights and thermometers
17. Bases have +1 ions because every solution starts with a hydrogen
18. Hydrogen
19.
a. Basic
b. Basic
c. Acid
d. Neutral
10. 0.015 ppm
11. A water molecule is polar because it has a negative charge at the oxygen end and a positive charge at the hydrogen end. Having opposite charges cause them to attract, causing them to be titled polar molecules.
12. Molecules in water sometimes attract or repel based on which side meets up. If two of the same ends meet up with would repel, if two opposite ends met up they would attract. ( Opposites attract )
13.
a. Oxygen would attach with pottasium
b. Hydrogen would attach with bromine
14. Heavy metals have their name because the atomic mass is heavier than the regular metal elements.
15. It would damage your liver, nervous system, and the brain
16.
a. Lead can be in water pipes and paint
b. Mercury can be found in flourescent lights and thermometers
17. Bases have +1 ions because every solution starts with a hydrogen
18. Hydrogen
19.
a. Basic
b. Basic
c. Acid
d. Neutral
Friday, June 24, 2011
Homework #9
p62 1 - 3
1.
a. The solution at the higher temperature (50°C) would be more clear than the solution at a lower temperature, as the temperature drops its stops dissolving because as it gets cooler and cooler it loses solubility.
b. Dawring
2.
a. Drawing
b. 80g water
i. Drawing
ii. 35g water
3.
a. Drawing
b. Drawing
c. Key features that are different are the amount of water in the second drawing. Making there much more solvent then solute.
1.
a. The solution at the higher temperature (50°C) would be more clear than the solution at a lower temperature, as the temperature drops its stops dissolving because as it gets cooler and cooler it loses solubility.
b. Dawring
2.
a. Drawing
b. 80g water
i. Drawing
ii. 35g water
3.
a. Drawing
b. Drawing
c. Key features that are different are the amount of water in the second drawing. Making there much more solvent then solute.
Extra Credit
http://www.economist.com/node/748824
Wednesday, June 22, 2011
Blog Question
I think we should review alot of the unit conversions, that is where most of us are in trouble.
And also review ALL vocabulary
And also review ALL vocabulary
Homework #8
p.56 1 -3
1.
a. 95g 3KNO
b. 45g KCl
2.
a. 20 grams of pottasium nitrate
b. 45g 3KNO
3.
a. 565g pottasium nitrate
b. 110℃ is needed
p.82 1 - 8
1. The sugar would dissolve better in hot tea because of the high dissolving point. The cold water would not full be able to dissolve the sugar.
2. 49g of pottasium chloride
3.
a. 80g sugar
b. 177.5g sugar
c. 473g sugar
4. Sodium chloride, Pottasium chloride, and Pottassium chloride
pottasium nitrate, pottasium chloride, sodium chloride
5. A saturated solution is an uneven amount of solute put into a solution causing a solid to appear. Unsaturated solution is a even amount put into solution, causing no change.
6.
a. 30g
b. Unsaturated, the grams are being dissolved in a even amount
c. 60g 3KNO
7.
a. nothing should happen if it is unsaturated because one small amount cannot saturate a solution.
b. if it is saturated then it will remain saturated
c. if it is supersaturated then a small amount would not be absorbed into the solvent
8. 55g is the percent concentration of Ethanol
1.
a. 95g 3KNO
b. 45g KCl
2.
a. 20 grams of pottasium nitrate
b. 45g 3KNO
3.
a. 565g pottasium nitrate
b. 110℃ is needed
p.82 1 - 8
1. The sugar would dissolve better in hot tea because of the high dissolving point. The cold water would not full be able to dissolve the sugar.
2. 49g of pottasium chloride
3.
a. 80g sugar
b. 177.5g sugar
c. 473g sugar
4. Sodium chloride, Pottasium chloride, and Pottassium chloride
pottasium nitrate, pottasium chloride, sodium chloride
5. A saturated solution is an uneven amount of solute put into a solution causing a solid to appear. Unsaturated solution is a even amount put into solution, causing no change.
6.
a. 30g
b. Unsaturated, the grams are being dissolved in a even amount
c. 60g 3KNO
7.
a. nothing should happen if it is unsaturated because one small amount cannot saturate a solution.
b. if it is saturated then it will remain saturated
c. if it is supersaturated then a small amount would not be absorbed into the solvent
8. 55g is the percent concentration of Ethanol
Homework #7
25. Qualitative tests are tests used to see what is in the sample, quantitative tests are used to see how much sample there is.
26. Confirming tests prove that there are ions in the sample.
26. Confirming tests prove that there are ions in the sample.
Blog Question
From the water testing lab I learned that the water process is one that is long a percise. Ultimately showing the true value of water itself.
Monday, June 20, 2011
Blog Question
Water testing helps us because it allows our community to understand the value of water. Showing that all water, in fact, is not drinkable; therefore showing us waters true value.
Homework #6
p.51 #19 - 24
19.
a. carbon: 6 protons 6 electrons
b. aluminum: 13 protons 13 electrons
c. lead: 82 protons 82 electrons
d. chlorine: 17 protons 17 electrons
20.
a. not neutral
b. not neutral
c. electrically neutral
d. not neutral
21.
a. anion
b. neutral
c. neutral
d. cation
e. cation
22.
a. gaining
b. neither
c. neither
d. losing
e. losing
23.
a. H
b. Na+
c. Cl−
d. Al+3
24.
a. KI
b. CaS
c. FeBr3
d. Ba(OH)2
e. NH(3)PO
f. Al2O3
19.
a. carbon: 6 protons 6 electrons
b. aluminum: 13 protons 13 electrons
c. lead: 82 protons 82 electrons
d. chlorine: 17 protons 17 electrons
20.
a. not neutral
b. not neutral
c. electrically neutral
d. not neutral
21.
a. anion
b. neutral
c. neutral
d. cation
e. cation
22.
a. gaining
b. neither
c. neither
d. losing
e. losing
23.
a. H
b. Na+
c. Cl−
d. Al+3
24.
a. KI
b. CaS
c. FeBr3
d. Ba(OH)2
e. NH(3)PO
f. Al2O3
Water Diary Based Questioned p.20 #1- 7
1. Total water used in three day was 5448L.
2. On average, one person used 363L a day.
3. ( Classroom histogram )
4. The range of the daily persons water use is 634
5. Mean: 446, Median: 490
6. The members of my households daily use was 363, this is closest to he national average because the nations average is 370L. This is only 7 liters less than the average.
7. Question 2 because this answer was closer to the national answer, rather than the answer in question 5
2. On average, one person used 363L a day.
3. ( Classroom histogram )
4. The range of the daily persons water use is 634
5. Mean: 446, Median: 490
6. The members of my households daily use was 363, this is closest to he national average because the nations average is 370L. This is only 7 liters less than the average.
7. Question 2 because this answer was closer to the national answer, rather than the answer in question 5
Friday, June 17, 2011
Homework #5
13. ( Drawing )
14.
a. Models: i, ii, iv, vi
b. Models: iii, v
15. The chemical formula best represents a different chemical substance.
16.
a. 3 Hydrogen, 1 Phosphorus, 4 Oxygen
b. 1 Sodium, 1 Oxygen, 1 Hydrogen
c. 1 Sulfur, 2 Oxygen
17. ( Drawing )
18. On paper
14.
a. Models: i, ii, iv, vi
b. Models: iii, v
15. The chemical formula best represents a different chemical substance.
16.
a. 3 Hydrogen, 1 Phosphorus, 4 Oxygen
b. 1 Sodium, 1 Oxygen, 1 Hydrogen
c. 1 Sulfur, 2 Oxygen
17. ( Drawing )
18. On paper
Thursday, June 16, 2011
Homework #4
1. ( Drawing )
2. The model shows a heterogeneous mixture made up of two different compounds.
3. ( Drawing )
2. The model shows a heterogeneous mixture made up of two different compounds.
3. ( Drawing )
Wednesday, June 15, 2011
Unit 1B Vocab List ( B.1 - B.4 )
1. matter - anything that occupies space and has mass.
2. physical properties - properties that can be observed and measured without changing the chemical makeup of the substance.
3. density - mass of material within a given volume
4. freezing point of water - a physical property
5. aqueous solution - a substance that dissolves readily in water
6. mixture - when two or more substances combine and yet the substances retain their individual properties the result is a mixture
7. heterogeneous mixture - a composition that is not the same, or uniform, throughout.
8. suspension - solid particles that are large enough to settle out or can be separated by filtration
9. Tyndall effect- a scattering of light as if bounces/reflects off of small particles
10. colloid - cloudy particles; small solid particles
11. homogeneous mixture - a mixture that is uniform throughout
12. solution - homogeneous mixtures
13. solute - the dissolved substance
14. solvent - the dissolving agent
15. particulate level - the level of its ( the substance's ) atoms and molecules
16. atoms - the building blocks of matter
17. element - one kind of atom that makes up matter
18. compound - a substance that is composed of the atoms of two or more elements linked together chemically in fixed proportions
19. chemical formulas - represents compounds and elements
20. substance - a uniform and definite composition that has distinct properties
21. molecule - the smallest unit of a molecular compound that retains the properties of that substance
2. physical properties - properties that can be observed and measured without changing the chemical makeup of the substance.
3. density - mass of material within a given volume
4. freezing point of water - a physical property
5. aqueous solution - a substance that dissolves readily in water
6. mixture - when two or more substances combine and yet the substances retain their individual properties the result is a mixture
7. heterogeneous mixture - a composition that is not the same, or uniform, throughout.
8. suspension - solid particles that are large enough to settle out or can be separated by filtration
9. Tyndall effect- a scattering of light as if bounces/reflects off of small particles
10. colloid - cloudy particles; small solid particles
11. homogeneous mixture - a mixture that is uniform throughout
12. solution - homogeneous mixtures
13. solute - the dissolved substance
14. solvent - the dissolving agent
15. particulate level - the level of its ( the substance's ) atoms and molecules
16. atoms - the building blocks of matter
17. element - one kind of atom that makes up matter
18. compound - a substance that is composed of the atoms of two or more elements linked together chemically in fixed proportions
19. chemical formulas - represents compounds and elements
20. substance - a uniform and definite composition that has distinct properties
21. molecule - the smallest unit of a molecular compound that retains the properties of that substance
Homework #3
1. Physical property - properties that can be observed and measured without changing the chemical make up of the substance.
2. Three physical properties of water are water the liquid state, ice the solid state, and water vapor the gaseous state.
3. The density of liquid water compared to solid water ( ice ) would be more because the liquid water takes up more volume in its given area. In ice, the waters molecules are so slow and so close together, the ice takes up less of a volume then liquid water.
4. In a kitchen you could observe water in all three states at the same time. Ice ( solid state ) in the freezer, water ( liquid state ) boiling in a pot or coming out the faucet, and water vapor ( gaseous state ) coming out of a pot as the water boils on the stove.
5. A heterogeneous mixture has a composition that is not the same throughout the whole mixture. A homogeneous mixture is uniform ( or the same ) throughout.
6. To understand the relationship between oil and water, and be able to make a reasonable prediction of which will stay on top, you need to understand the concept of density. This is because the substance that is more dense will tend to sit on the bottom. Therefore, if a person saw a mixture of oil and water, and new that water was more dense than oil, they could predict that the water would sit on the bottom and the oil would rest on top.
7. a. colloid
b. colloid
c. suspension
d. solution
e. colloid
f. colloid
8. The air in the room would be a suspension, because the air particles are big enough to where the light can bounce and reflect off the particles. Making the stream of light visible to our human eye.
9. ( Sketch on paper )
10. Colloid, because some particles in the mixture are larger than others. This is what causes them to settle at the bottom over time.
11. Substance - A uniform and definite composition that has distinct properties.
12. a. element
b. element
c. element
d. element
e. compound
f. element
g. compound
2. Three physical properties of water are water the liquid state, ice the solid state, and water vapor the gaseous state.
3. The density of liquid water compared to solid water ( ice ) would be more because the liquid water takes up more volume in its given area. In ice, the waters molecules are so slow and so close together, the ice takes up less of a volume then liquid water.
4. In a kitchen you could observe water in all three states at the same time. Ice ( solid state ) in the freezer, water ( liquid state ) boiling in a pot or coming out the faucet, and water vapor ( gaseous state ) coming out of a pot as the water boils on the stove.
5. A heterogeneous mixture has a composition that is not the same throughout the whole mixture. A homogeneous mixture is uniform ( or the same ) throughout.
6. To understand the relationship between oil and water, and be able to make a reasonable prediction of which will stay on top, you need to understand the concept of density. This is because the substance that is more dense will tend to sit on the bottom. Therefore, if a person saw a mixture of oil and water, and new that water was more dense than oil, they could predict that the water would sit on the bottom and the oil would rest on top.
7. a. colloid
b. colloid
c. suspension
d. solution
e. colloid
f. colloid
8. The air in the room would be a suspension, because the air particles are big enough to where the light can bounce and reflect off the particles. Making the stream of light visible to our human eye.
9. ( Sketch on paper )
10. Colloid, because some particles in the mixture are larger than others. This is what causes them to settle at the bottom over time.
11. Substance - A uniform and definite composition that has distinct properties.
12. a. element
b. element
c. element
d. element
e. compound
f. element
g. compound
Tuesday, June 14, 2011
Short Response #2
I decided to give my opinion on which is worse, water shortage v. water pollution. I personally think that water shortage is worse because with technology today we have learned how to purify polluted water. If there was no water to even attempt to distill, then the price of water would go up, the world would panic, then ultimately no life would be possible. This is why I think polluted water would be better, at least we have water that we would be able to fix.
Unit 1A Vocab List
1. Purity - Freedom from adulteration and contamination
2. Clean water - water that is suitable for hand washing
3. Filtrate - Liquid collected after it has been filtered
4. Adsorbs - attracts and holds on its surface
5. Percent recovery - percent of your original substance found in your sample
6. Histogram - a graph obtained by graphing the range and data set into equal intervals and plotting the number of data points in each interval.
7.Average - adding all values together and dividing the sum by total number of values
8. Mean value - average
9. Median - middle value
10. Electrical conductivity - electrically charged particles in water
11. Tyndall effect - shows that there are particles in water which allows you to see the light beam going through water ( which is the light bouncing off the particles in the water )
12. Hydrologic cycle - rain or snow falls in the U.S, only 10% is used by humans. The rest flows back into bodies of water, evaporates into the air, and falls again.
13. direct water use - can be directly measured
14. indirect water use - hidden uses of water you may have never considered
15. water's gaseous state - water vapor in the air
16. water's liquid state - liquid water ( oceans, rivers, etc )
17. water's solid state - ice
18. surface water - a home's water supply that came from river or another body of water
19. ground water - home's water supply that came from a well or was pumped to the surface
20. aquifer - a water - bearing layer of rock, sand, or gravel
2. Clean water - water that is suitable for hand washing
3. Filtrate - Liquid collected after it has been filtered
4. Adsorbs - attracts and holds on its surface
5. Percent recovery - percent of your original substance found in your sample
6. Histogram - a graph obtained by graphing the range and data set into equal intervals and plotting the number of data points in each interval.
7.Average - adding all values together and dividing the sum by total number of values
8. Mean value - average
9. Median - middle value
10. Electrical conductivity - electrically charged particles in water
11. Tyndall effect - shows that there are particles in water which allows you to see the light beam going through water ( which is the light bouncing off the particles in the water )
12. Hydrologic cycle - rain or snow falls in the U.S, only 10% is used by humans. The rest flows back into bodies of water, evaporates into the air, and falls again.
13. direct water use - can be directly measured
14. indirect water use - hidden uses of water you may have never considered
15. water's gaseous state - water vapor in the air
16. water's liquid state - liquid water ( oceans, rivers, etc )
17. water's solid state - ice
18. surface water - a home's water supply that came from river or another body of water
19. ground water - home's water supply that came from a well or was pumped to the surface
20. aquifer - a water - bearing layer of rock, sand, or gravel
Homework #2
A.8 # 1 - 4
1. Three water uses I could live without are washing cars, floors, windows, and pets.
2. One task I could not live without is wash clothes and dishes.
3. You could reduce water use on bathing, showering, washing hair, and washing hands simply by reducing the amount of time you do each one.
4.
a. Flushing toilets
b. It can be taken from bathing, showering, washing hair and hands
p. 23 # 3 - 7
3.
a. Indirect use
b. Direct use
c. Indirect use
4. To " purify " is to clean and filter water to the best of your ability before distillation.
5. Three techniques to purify water are oil - water separation, sand filtration, and charcoal adsorption and filtration.
6. The visible pollutants were removed in every step of the investigation.
7.
a. The foul water lab could not produce suitable drinking water because there are harmful particles unseen to the human eye.
b. The water would need to be distilled for it to be suitable for drinking.
1. Three water uses I could live without are washing cars, floors, windows, and pets.
2. One task I could not live without is wash clothes and dishes.
3. You could reduce water use on bathing, showering, washing hair, and washing hands simply by reducing the amount of time you do each one.
4.
a. Flushing toilets
b. It can be taken from bathing, showering, washing hair and hands
p. 23 # 3 - 7
3.
a. Indirect use
b. Direct use
c. Indirect use
4. To " purify " is to clean and filter water to the best of your ability before distillation.
5. Three techniques to purify water are oil - water separation, sand filtration, and charcoal adsorption and filtration.
6. The visible pollutants were removed in every step of the investigation.
7.
a. The foul water lab could not produce suitable drinking water because there are harmful particles unseen to the human eye.
b. The water would need to be distilled for it to be suitable for drinking.
Foul Water Lab
Chase & Oliver
The Electrons Lab Report
6/14/11
Foul Water Lab
In our lab, the goal was to filter extremely foul water enough to be able to wash your hands with that same water. At the beginning of our lab we received 100 mL of extremely foul water in a glass beaker. With this water we first put it through the process of oil - water separation. This was a process where we removed the visible layer of oil with a barrel pipette. We went through this step three complete times. At first, we barely removed any oil. The second try we received more oil then the first attempt, but after this second try we realized that the mouth of the pipette was too thin to extract the thick oil from the water. In this case, we took scissors and cut the tip of the pipette so that the mouth was wide enough to get the oil out. This simple change allowed us to completely remove all visible oil from the water. Now left with 86 mL of foul water, we moved on to sand filtration. In this step, we place a damp 2 cm layer of sand in the middle of two 1 cm layers of gravel. This sand and gravel was held in a small cup with holes poked into the bottom. The goal was to have the water seep through the gravel, be naturally filtered by the sand and out the holes on the bottom of the cup. This is not what happened. In fact, the sand was so fine that it came out the holes with the water. Faced with a conflict, we decided it was best to add another step. In this step we carefully poured the water into a filter papered funnel. This method was ultimately proven too slow, so we moved on to the final step, Charcoal adsorption and filtration. We took a tea spoon of charcoal and poured it into a flask. Then we also poured the foul water into the same flask and vigorously mixed for a few seconds. While I ( Chase ) mixed the water with the charcoal, Oliver set up the funnel filter. In this, he folded filter paper and placed it in a funnel which was elevated on a ring stand. We then placed a new beaker under the funnel, the water would slowly drop into the beaker as it made its way through the filter paper. This was the longest process of all. During this step we had learned that the charcoal we had been given was of a lower quality, and because we were so far into our lab, it was too late to make any change. This played a major role on our end result, while also prolonging the step. We used glass stirring sticks to help the water through the paper. Half way into the charcoal adsorption, Dr. Forman kindly switched our filter paper with new paper. This sped up and finished our lab. At the end, we had 65 mL of yellow colored water. This water had a rubber like odor and had no oil or no solids.
Procedure:
- First we received 100 mL of foul water
- Then we used the barrel pipette to remove the oil from the top layer of water
- First try with the pipette we barely removed any oil
- second try we received more oil than the first try
- After the second attempt we realized that the mouth of the pipette was too small
- We used scissors to cut a bigger mouth on the pipette
- On the third try we removed all visible oil from the foul water
- Then we re-measured our water in a graduated cylinder
- After the oil separation we went to sand filtration
- We received a small styrofoam cup and poked holes in the bottom using a paper clip
- In the cup we added: 1 cm of gravel on the bottom, then 2 cm of sand, and topped it with another 1 cm layer of gravel
- We then made the gravel and sand damp so that all the water was not absorbed into the sand
- The sand was so fine that it seeped through the bottom with the water
- We then added another step
- We added filter paper to a funnel and placed a clean beaker underneath
- This stepped was proven to slow
- We then went straight to charcoal adsorption and filtration
- We received a tea spoon of charcoal and one flask
- We put the water and charcoal in the flask and mixed the two
- While I ( Chase ) spun the flask Oliver set up the filter papered funnel in the ring stand and placed a clean beaker under to catch the water
- At this point we learned that the charcoal given to our group was a lower quality
- But it was too late for our group to switch charcoals
- Because our lab was taking so long we used glass stirring sticks to help aid the water through the filter paper
- Towards the end of our lab Dr. Forman replaced our old filter paper with new paper
- This sped up and finished our Foul Water Lab
- We ended with 65 mL of a yellow, rubber odored, water
- In our end results we were left with 65 mL of yellow water. This water was yellow because the charcoal we received was at a lower quality then other charcoal given out. However, the water was some what clear and had a rubber like odor. all visible signs of oil and any solids were removed.
- Data Analysis:
1. Our percent recovery of water was 65%.
2. We lost 35 mL of foul water in our purification process.
3. 35% of the original foul water was lost during this process of purification.
4. ( Chart )
5. The largest percent recovery was 70%, and the lowest was 54%. Our classes range of percent recovery was 16.
6. The average percent recovery for our class was 64.3%
Post Lab Activities:
1.
a. In the process of distillation, you use a distillation apparatus. This apparatus has three main sections, one round flask which holds the non pure fluid, a tube containing cool water, and another empty round flask on the other side of the tube. Under the non pure liquid is a heating plate which ( in the case of salt water ) boils the water. The water begins boiling and evaporating around 100 degrees. Sense the salt has a much higher boiling point it stays at the bottom of that flask. The vapor from the liquid then flows upward and condenses because of coming in contact with the cool water in the tube. The liquid then travels through this tube, and drops into the empty flask on the other side. Containing the pure liquid.
b. Unsure ( did not learn )
c. The liquid was left to demonstrate the difference between distilled water and un pure water.
2. The salt in salt water is able to conduct electricity. Distilled water is not a conductor, due the fact it does not contain the salt particles. This teaches us that the water samples we produced are pure if they have no electricity and not pure if the light bulb shines. Every sample in class conducted electricity, even the ones that seemed to be perfectly clear. Teaching us that even when water seems pure, there may be particles unseen to the human eye.
Questions:
1. My purified water sample was not pure because my water conducted electricity when tested.
2. Someone should judge the success of a groups purification through the amount of electricity conducted when tested by the teacher. Once you get past that pivotal step, the next place to judge would be color, odor, etc.
3. You could improve the purification procedure by making a longer time frame. Allowing more time for purification would lead to a better result.
Monday, June 13, 2011
Homework #1
For each region in the U.S. name the greatest single use for water.
a. the East - Steam / Electric b. the South - Steam / Electric
c. the Midwest - Steam / Electric d. the West - Irrigation / agricultural
e. Alaska - Mining f. Hawaii - Irrigation / agricultural
In the East, the main water supply is for Steam / Electric use. This relates to the amount of cities and electrical buildings on this coast. On the West coast the main Irrigation / agricultural use for water relates to the weather and great farming areas. The climate, population, economy etc. play a major role in the patterns of water use through out the United States.
In each region the weather, economy, and culture play a different role in their region. The weather can tell how much water the region gets, the economy can dictate the amount of pure water received, and the culture can regulate how much water is used.
Section A Summary:
1. Yes, Jimmy used water because water is used in the making of juice. Also, the water is in the juice, therefore, Jimmy did use water.
2. Three indirect uses of water associated with producing a loaf of bread are washing your hands, washing the cooking supplies, and growing the flour and eggs.
8. The worlds water over the past 1 million years has changed however, nature is constantly adding on to the worlds water supply. Even when the water is used , nature is constantly refilling our worlds supply. However, as societies technology advances, the world may be moving too fast for nature.
9. 1- Oceans 2- Glaciers 3- Rivers 4- Water vapor
10. Water is around, however the water is polluted so you cant drink it.
11. 77 % of water is used in irrigation and agriculture in my U.S. region.
12.
a. Glaciers and ice caps - 2.11
b. Lakes - 0.009
13. Its possible for humans to drink the same water a dinosaur drank because when the dinosaur urinated its possible that the urine went into a lake or water way. From there the urine/water went through nature purification as it went through water falls and other obstacles. Then over all these years it was in our reach.
17. With each average person using 370 L a our population would reach an astonishing amount of water used daily. However a lot of the world does no have a steady access to water, therefore, the water usage is lower that a mathematical number that may be concluded, but the number is still very high.
a. the East - Steam / Electric b. the South - Steam / Electric
c. the Midwest - Steam / Electric d. the West - Irrigation / agricultural
e. Alaska - Mining f. Hawaii - Irrigation / agricultural
In the East, the main water supply is for Steam / Electric use. This relates to the amount of cities and electrical buildings on this coast. On the West coast the main Irrigation / agricultural use for water relates to the weather and great farming areas. The climate, population, economy etc. play a major role in the patterns of water use through out the United States.
In each region the weather, economy, and culture play a different role in their region. The weather can tell how much water the region gets, the economy can dictate the amount of pure water received, and the culture can regulate how much water is used.
Section A Summary:
1. Yes, Jimmy used water because water is used in the making of juice. Also, the water is in the juice, therefore, Jimmy did use water.
2. Three indirect uses of water associated with producing a loaf of bread are washing your hands, washing the cooking supplies, and growing the flour and eggs.
8. The worlds water over the past 1 million years has changed however, nature is constantly adding on to the worlds water supply. Even when the water is used , nature is constantly refilling our worlds supply. However, as societies technology advances, the world may be moving too fast for nature.
9. 1- Oceans 2- Glaciers 3- Rivers 4- Water vapor
10. Water is around, however the water is polluted so you cant drink it.
11. 77 % of water is used in irrigation and agriculture in my U.S. region.
12.
a. Glaciers and ice caps - 2.11
b. Lakes - 0.009
13. Its possible for humans to drink the same water a dinosaur drank because when the dinosaur urinated its possible that the urine went into a lake or water way. From there the urine/water went through nature purification as it went through water falls and other obstacles. Then over all these years it was in our reach.
17. With each average person using 370 L a our population would reach an astonishing amount of water used daily. However a lot of the world does no have a steady access to water, therefore, the water usage is lower that a mathematical number that may be concluded, but the number is still very high.
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