Which is worst water solution or water pollution?

Over the past three weeks our class has been thinking about which is a worst situation to be in, not having water or having water and it being polluted.  After learning about water, and water pollution, and filtration, I have decided to take the side of water shortage being worst.  The reason I think that water shortage is worst is because with all our new technology it is very easy for us to purify the water.  We have learned about filtering water. We have learned about the different ways water is filtered. We even did an experiment where we had contaminated water and we used three different steps to filter it. My opinion is that having contaminated water would be better, because you can filter it out making it usable for either drinking or for washing you hands, and other things. Without water you don't have anything to filter.

Solubility of a Gas

The solubility of a gas is much different than the solubility of a solid. The solubility curve for a solid would be the higher the temperature the higher amount of the solute that will dissolve.

 For the solubility curve of a gas is the total opposite the higher the temperature, the lower amount of the gas that will dissolve in the solvent.

Chemistry Homework D.1-D.6

1. Look at daring

2.List three major processes that occur in natural water purification and, for each, identify the contaminates

1. Thermal energy from the sun causes water to evaporate from oceans and other water sources, like distillation.

2.Bacterial action converts dissolved organic contaminates into a few simple compounds.

3.Filtration through sand and gravel removes nearly all suspended matter

3. How are the properties of aluminum hydroxide related to the process of flocculation?

It traps and removes the suspended particles

4.Why is calcium oxide (CaO) sometimes added in the final steps of municipal water treatment?

It is used to neutralize such acidic water, raising its pH to a proper level

5.Fluoride, and ingredient in many types of toothpaste, is sometimes added to municipal water supplies in the last stage of water treatment. How much fluoride is added and what is its purpose?

1ppm of flurried is added to the water, and it treats water in a process known as fluoridation, which can reduce tooth decay

6.What are advantages of chlorinated drinking water compared to untreated water?

Removing the organic material

7. Is there a disadvantage to using colorization in water treatment? Explain

the chlorine added in post-chlorination can still promote formation of THMs , even if to a lesser extent than with pre-chlorination

8. Water from a clear mountain stream may require chlorination to make it sae for drinking. Explain

The reason that clear mountain water might require chlorination is because of all the chemicals in the air that we have from pollution may have traveled into the water, causing some impurities to the water.

9.List two alternative to use of chlorination in municipal water treatment.

Charcoal filter and ultraviolet light

18. Explain what would happen to Earth's hydrologic cycle if water evaporation suddenly stopped?

There would be no evaporation cycle meaning that the cycle would just stop, and all the water would just stay on land and never be reused.

19. One unique characteristic of water is that it is present in all three physical states in the range of temperatures found on Earth. How would the hydraulic cycle be different if this were no true?

 It would be different because then you couldn't be able to evaporate it, when the water turns into gas, then there would be no evaporation.

20. WHy does the EPA limit the concentration of THMs to 80 ppb instead of requiring their total elimination for municipal water supplies?

They didn't eliminate it because they need a little bit of chlorine in the water

21.Compare how the various processes used in the foul-water investigation are similar to steps in the natural purification of water?

One step that is like the foul water investigation is the filtering through the gravel and sand. Both the natural filtration process and the foul-water investigation both used the sand gravel system to purify the water.

22. Some physicians recommend consuming about 2 L of water daily. Municipal water supplies may contain up to 1 ppm fluoride. Assume that you drink 2 L of water per day. At 1ppm fluoride, how many grams of fluoride ion would you consume in

A. One Day?

1ppm

B. One week?

7ppm

C. One Year?

365ppm

Concept 1 Unit Conversionis

(Meters)
Kilometers
Hectometer
Dekameter
Meter
Decimeter
Centimeter
Millimeter
Those are all the units for the metric system. A very good pneumonic device that I use is Kangaroos Hop Down Mountains During Cold Months.

Example 1:
60 m/s to km/hr

So we first know that there are 60 meters per second. 60m/1s
We also know that there are 3600 seconds per hour 3600s/1hr
Right now the equation should look like this: 60m/1s X 3600s/1hr
We still need to get the meters into kilometers.
So we think to ourselves how many meters are in a kilometer? 1000
That part of the equation should look like this 1km/100m
The full equation is supposed to look like this: 60m/1s X 3600s/1hr X 1km/100m.
Then multiply the top, and the bottom 216000/1000
Your answer should then be 216 km/hr

Chemistry homework C.11- C.13

Chem homework C.10-C.11

20.Which is more acidic:

A. a soft drink or a tomato

Soft drinks

B. Black coffee or pure water

Black coffeee

C. Mike of magnesia or household ammonia

Mike of amnesia

21.How many times more acidic is a solution at pH 2.0 than a solution at pH 4.0.

20 

22. List three negative effects of inappropriate pH levels on aquatic organisms

When pH of rivers, lakes and streams is too low, fish-eggs development is impaired thus hampering the ability of fish to reproduce.

Bodies of water wit low pH values also tend to increase the concentration of metal ions in natural waters by leaching metal ions from surrounding soil, which are toxic.

23. Distinguish between polar and nonpolar molecules

Nonpolar molecule is a molecule that has an even distribution of electrical charge with no region of partial positive and negative charge

A Polar molecule  is a molecule with regions of partial positive and negative charge resulting from the uneven distribution of electrical charge

24. Would you detect ethanol, water or lamp oil to dissolve a nonporlar 

I would use oil because it is a nonpolaror, and non polars always dissolve with non polars

25. Why does table salt dissolve in water but not cooking oil?

Table salt is polar, and polar only goes with polar, and cooking oil is non polar

26 Explain the phrase "like dissolves like."

One substance dissolves itself.

27. Explain why you cannot satisfactorily clean greasy dishes with just plain water

Because grease is non polar, and you need a non polar substance to clean off a non polar substance. And water is pooler

33. Many mechanics prefer to use waterless hand cleaners to clean their greasy hands Explain

aWhat kind of materials are likely to be found in these cleaners

Non polar molecules may be found in these cleaners

bWhy usage these cleaners is more effective than washing it with bater

Because since the grease is a non polar molecule, you need to take a non polar molecule off with a non polar molecule, and water is a polar molecule not a non polar one.

35. Fluorine has the highest electronegativity of any element. Fluorine and hydrogen form a polar bond, Which atom in HF would you expect to have a partial positive charge?

Hydrogen

Homework C.8-C.9

9. Calculate the masses of water and sugar in a 55.0 g sugar solution that is labeled 20.o% sugar by mass.

11grams

10. The EPA maximum standard for lead in drinking water is 0.015 mg/L. Express this value as parts per million (ppm).

15ppm

11. What makes water molecule polar?

The positive and negative charge at the opposite ends.

13. Which region of a polar water molecule will be attracted to a 

a K⁺ ion

K- Ion

b. BR^-

Br+

14.Why are heavy metals called heavy?

Because their atoms have greater masses than those of essential metallic elements

15. List three symptoms of heavy metal poisoning

-Damage to nervous system

-Damage to the brain

-Damage to the kidney.

16. List two possible sources of human exposure to 

a. Lead

When the water goes through lead pipes, it could pick up some of its chemical

b. Mercury

The old thermometer 

17. What ion is found in many bases

Hydroxide ions, Sodium hydroxide, barium hydroxide

18. What element is found in most acids?

Hydrogen 

19. Classify each sample as acidic, basic or chemically neutral:

A. Seawater (pH = 8.6)

Basic

B. Drain cleaner (pH= 13.0)

Basic

C. Vinegar (pH - 2.7) 

Acidic

D. Pure water (pH - 7.0)

Chemically neutral

Extra Credit Particle Physic

http://www.economist.com/blogs/babbage/2011/06/treating-cancer

This article speaks is about cancer. There isn't really a cure for cancer, but there are treatment to killing the cancer cells.  One treatment that is used is chemotherapy. The problem with chemotherapy is that it kills all the cells even the bad cells. So two doctors have been trying to come up with a cure that will kill only the bad cells but not any of the good cells.  The two doctors thought about what happens when there is an injury, and all the cells come to that certain spot where there is an injury.  So these two doctors are developing a new drug that will go only to the cancer cells and kill, like our body would naturally do if we had an injury. They have have done experiment with it, but they need to test it out more just to be safe.

What I want to review before the test.

-Ions

-Chemical formulas

Unit One C1-C2 homework

1.A. What mass of potassium nitrate (KNO3) will dissolve in 100g water at 60 degrees C?

105grams

B.What mass of potassium chloride will dissolve in 100 g water at the same 60 degree C temperature?

45 grams

2. a. You dissolve 25 g potassium nitrate in 100g water at 30 degrees C, producing an unsaturated solution. How much more potassium nitrate must be added to form a saturated solution at 30 degrees C?

10g

B. what is the minimum mass of 30 degrees C water needed to dissolve 20 g potassium nitrate

45grams

3. A. A supersaturated solution of potassium nitrate is formed by adding 150g KNO3 to 100 g water, heating until the solute completely dissolves, and then cooling the solution to 55 degrees C. If the solution is agitated, how much potassium nitrate will precipitate.

50g

Page 82 1-8

1. Explain why three teaspoons of sugar will completely dissolve in a serving of hot tea, but will not dissolve in an equally sized serving of iced tea.

Because of solubility. At a high temperature a larger amount of solids dissolve than at a lower temperature

2.What is the maximum mass of potassium chloride(KCL) that will dissolve in 100.0g water at 70 degreesC.

131g

3. If the solubility of sugar in water is 2.0 g/mL at room temperature, what is the maximum mass of sugar that will dissolve.

a. 100.0 mL water?

200 g/mL

b. 355 mL water?

710 g/mL

c. 946 mL water?

9182 g/mL

4. Rank the substances in Figure 1.33 from most soluble to least soluble at 

a. 20 degrees C

KNO₃, KCI, NaCl

B. 80 degrees C

KNO₃, KCI, NaCl

5. Distinguish between the term saturated and unsaturated

Saturated means that the liquid can't dissolve the particles anymore, and that there are precipitates at the bottom of the liquid.

unsaturation is when the solution has less solutes than the amount of solvents it can normal hold at that temperature

6.Using the graph on page 54, answer these questions about the solubility of potassium nitrate, KNO_3,

_{a. What is the maximum mass of KNO3 can dissolve in 100g water if the water temperature is 20 degrees C?}

_30g

_{B. A 30 degrees, 55 g KNO3 is dissolved into 100 g water. Is this solution saturated, unsaturated, or supersaturated?}

_{Supersaturated}

_{C. A saturated solution of KNO3 is formed in 100 g water at 75 degrees C. If some solute precipitates as the saturated solution cools to 40 degrees C, what mass of solid KNO3 should form.}

_80g

_{7. You are given a solution of KNO3 of unknown concentration. What will happen when you add crystal of KNO3 if the solution is}

_{a.Unsaturated?}

_{Nothing would happen, the crystals would dissolve into the water}

_{B. saturated}

_{All the crystals would go down to the bottom}

_{C. Supersaturated}

_{The crystals would sink down to the bottom}

_{8. A 35-g sample of ethanol is dissolved into a 115g water. What is the percent concentration of the ethanol, expressed as a percent ethanal by mass?}

_35%

What did you learn from this lab about water and about process?

In this lab I learned may thing about water and about processes. First I learned that there are more than one type of ion precent in a sample of water. For example, in the control, there was a presence of Iron ions and Chloride Ions and also Calcium Ions. I also learned that for the process you have to be very careful, and very thorough. If you mess up one chemical, if you don't clean out the well plates very well you can mix chemicals. So it is very important to be thorough.

Page 52 #25-34

25. Describe differences between qualitative and quantitative test.

Qualitative test, identify the presence or absence of particular substances in a sample. Quantitative test determines the amount of a specific substance present in a sample.

26. What is a confirming test?

 A confirming test is a positive test which confirms that the ion in question is present.

27. In the water-testing investigation, what was the purpose of 

A. The reference solution? 

The point of a reference is so that you can refer to that sample to see if it has the ions in the sample

B. The distilled-water blank?

The point of distilled water is to give an example of a non-reactant test.

28. Using the procedure outlined in the water-testing investigation, a student tests a sample of groundwater for iron and observes no color change. Should the student concluded that no iron is present? Explain your answer.

No the student shouldn't concluded that there is no iron present because there are three types of iron, and maybe he only tested for one type, but not the other.

29. Given and unknown mixture

a.What steps would you follow to classify it as a solution, a suspension, or a colloid?

First I would let the mixture sit for a little bit and see if any of the particles would sink down to the ground. And if they did sink down to the bottom of the class then i would know the liquid is a suspension. If the water didn't then I would do the tyndal test, to see if the laser would shine all the way though the glass. If you only see the laser only on the two ends of the glass then the water is pure and is a solution, but if you see the water in the middle then the mixture is a colloid.

B.Describe how each step would help you to distinguish among the three types of mixtures

Explained in A

30. Explain the possible risks in failing to follow the direction "shake before using" on the label of a medicine bottle.

If you have to shake the bottle before using, that means that the mixture inside a suspension, and all the particles are at the bottom of the bottle. The particles at the bottom need to be mixed with the actually solvent to make the medicine work. If you don't shake it then the liquid and the particles wont mix, and the medicine may not work

31. Why is it useful for element symbols to have international acceptance?

So you can use the symbols of the elements all around the world

32. Draw a model of a solution in which water is the solvent and oxygen gas is the solute.

Look at drawing

33. Is it possible for water to be 100% "chemical free?" Explain.

No because your water will always contain oxygen, nitrogen, and carbon dioxide.

34. Compare the physical properties of water (H₂O) with the physical properties of the elements from which it is composed of. 

Hydrogen is a gas, and so is oxygen. But when they are mixed together they make a liquid.

Water testing Lab Report

Abstract:

             In the water testing lab my lab group was testing for three different types of ions in five different types of liquid we were given. The first ion we were examining for was Calcium Ion (Ca²⁺). We had five different types of liquids that we test for Calcium Ions; distilled water, the control, ocean water, tap water, and the reference. The reference is the sample we compared all the other liquids, to conclude that there is a presence of Calcium Ions in the liquid. For each of those liquids we added three drops of Sodium carbonate  and we compared the distilled water, control, ocean water, and tap, with the Sodium Carbonate, to the reference. If any of the liquids resembled the reference then we knew it had Calcium Ions in it. After adding the Sodium Carbonate to the different liquids, we noticed that the reference formed small particles. That meant that any of the liquids that formed small particles after adding the Sodium Carbonate had calcium ions in the liquid. The distilled water had no reaction, which meant there were no Calcium ions in it. For the control solid particles formed, also known as precipitates, which meant that there was a presence of Calcium Ions in the control. In the ocean water, after adding Sodium Carbonate, the liquid also formed precipitates, proving that there is a presence of Calcium ions in the ocean water. Concluding that the distilled water, and tap water nothing formed meaning there wasn't a presence of Calcium Ions in it. For the ocean water and the control, there was a presence of Calcium Ions.

          The second Ion we where testing for was Iron(III) Ion (Fe³⁺). We used the exact same liquids as before, but added a different chemical into those liquids. The chemical we added to the liquids was Potassium Thiocyante. When we added Potassium Thiocyante to the reference the liquid turned into a dark red color and had precipitates. After adding the Potassium Thiocyante to all the liquids we got different results for each. For the distilled water we got no reaction meaning there were no presence of Iron ions in it. For the control we got precipitates and the water turned a dark red color which meant there was a presence of Iron ions.  When Potassium Thiocyante  is added to the ocean water, there was no reaction, meaning there was no presence of Iron ions in the water. For the tap water, there was also no reaction. In this test which was testing for Iron Ions, we only saw Iron Ions in the control, but not any of the other liquids.

          The third test was testing for Chloride Ion (Cl^-). Using the exact same types of water was before, but like the last test, we are adding a different chemical to the liquids.  The chemical we are adding is Silver Nitrate. When silver nitrate is added to the reference, which was ferris Sulfate, the liquid turns a white cloudy color, with precipitates. In the distilled water, after adding the Silver nitrate there was no reaction, concluding to no Chloride Ions. When the Silver nitrate was added to the ocean water, the water changed to a white cloudy color, with precipitates, concluding to a presence of Chloride Ions. For the  tap water, when the Silver nitrate was added, turned a little cloudy, but not a lot, and a small presence of precipitates. The conclusion to the third test is that the control, ocean water, and tap water had a presence of Chloride Ions in it, but distilled water had no Chloride Ions in it.

            The forth test was testing for Sulfate Ion (SO₄2-). This test also used the exact same types of water, that all the other tests used, and just like the other test, the chemical that will be added to the liquid is different than the chemicals that were added to the previous samples. The chemical that will be used is Barium Chloride. When barium chloride is added to the reference water, a little bit of white particles appear. So now we know that if in any of the samples little white particles, precipitates, appears we know that there is a presence of Sulfate Ions in it. In the control, after we added three drops of barium chloride, we saw little white precipitates. In the distilled water, there was no reaction. In the ocean water there were little white precipitates.  In the tap water nothing happen. Concluding that the ocean water, the control have Sulfate Ions in the liquid, but the distilled water and the tap water have no sulfate ions in them.

Procedure:
-First obtain all chemicals and materials. Obtain the distilled water, the ocean water and the control, then retrieve the chemicals; Ferric Nitrate solutions, Ferrous Sulfate solution, Sodium Carbonate solution, Barium Chloride solution, Potassium Thiocyanate solution, Calcium Chloride solution and Silver Nitrate. Also obtain the well plate and stir rod. 

-Then add 20 drops of distilled water into the first well in the well plate, and label the well "Distilled Water." After adding the distilled water into the well, add three drops of sodium carbonate into the same well with the distilled water.

-Next add 20 drops of the control liquid into the second well, and label the well "C" for control. -After adding the control into the well add three drops of Sodium Carbonate to the control.

-After finishing the control, add 20 drops of ocean water into the third well, and label that well "Ocean Water." Then add three drops of Sodium Carbonate into the ocean water.

-Then add 20 drops of calcium carbonate as a reference, into the forth well. After, add three drops of sodium carbonate into to calcium carbonate.

-Next add 20 drops of tap water into the fifth well, and then add three drops of sodium carbonate.

When the first test is done rinse the well plate and then stir rod thoroughly.

Second test:

-Add 20 drops of distilled water into the first well, then add three drops of Potassium Thiocyante to the distilled water

-Then add 20 drops of the control into the second well, then add 3 drops of potassium Thiocyante to the control

-After that add 20 drops of ocean water into the third well, and the add 3 drops of Potassium Thiocyante to the ocean water

-Add 20 drops of ferrous Sulfate, as the reference, into the forth well, and add three drops of Potassium Thiocyante

-Into another well add 20 drops of tap water into the fitfh , then add three drops of Potassium Thiocyante into the tap water

When the second test is done rinse the well plate and then stir rod thoroughly

Third Test:

-Add 20 drops of distilled water into the first well, then add three drops of silver nitrate into the distilled water

-Then add 20 drops of the control into the second well, and then add three drops of the silver nitrate into the control

-Next put 20 drops of ocean water into the third well, and then add three drops of silver nitrate into the ocean water.

-Then put 20 drops of tap water into the the forth well, and then add three drops of silver nitrate into the tap water.

Farris sulfate

Results:

For the Calcium Ion test we got to the conclusion that the control, and the ocean water had a Calcium Ions in it, and the rest of the liquids didn't have the Calcium Ion in it.

For the Iron(III) Ion test we came to the conclusion that only the control had a presence of Iron Ions in it, because that was the only liquid that turned the same color as the reference. The rest stayed the same.

For the Chloride Ion Test we came to the conclusion, that the ocean water, the control, and the tap water all had Chloride Ions in it. But the distilled water was non reactant witch meant that there weren't andy Chloride Ions in the water.

For the Sulfate ion test we came to the conclusion that the ocean water, and the control had the Sulfate ions in them. The distilled and tap water were  non reactant, which meant they did not have the sulfate ions in them.

Questions:

1. Why were a reference solution and a blank used in each test?

A reference solution is used to reffere all the other samples, to see if there is a presence of ions in the liquid. A blank is used to show what a non-reaction looks like.

2.What are some possible problems associated without he use of qualitative tests?

One possible problem could be that the sample isn't clear, and it is not easy to recognize if there are particles in the sample or not.

3. These test cannot absolutely confirm the absence of an ion. Why?

Because there is no test for an absence

4. How might your observations have changed if you had not cleaned your wells or stirring rod thoroughly after each test?

If after each test we didn't thoroughly clean the wells we could have accidentally mixed some chemicals, causing the samples to react differently.

How does testing water help us?

Testing water may help us in many ways. The first way testing water helps us is if there is an impurity in the water.  Testing the water allows us to become aware of all particles, and if there are any chemicals or toxins in the water we would be aware. If we did not test water we may be drink water that could be toxic to our bodies and kills us. Testing water is very important for our health.

B.8- B.11 19-24

19. For each of the following elements, identify the number of protons or electrons needed for an electrically neutral atom.


A. Carbon: 6 protons; 6 electrons
B. Aluminum: 13 protons; 13 electrons
C. Lead: 82 protons; 82 electrons
D. Chlorine: 17 protons; 17 electron

20. Decided wether each of the following atoms is electrically neutral.


A. Sulfur: 16 protons 18 electrons (No)
B. Iron: 26 protons 24 electrons (No)
C. Silver 47 protons 47 electrons (Yes)
D. Iodine: 53 protons 54 electrons (No)

21. Classify each of the following as an electrically neutral atom, an anion or a cation.

A. _O2-( Anion)
B. Cl (Neutral)
C._HG2+  (Cation)
D._Ag+ _(Cation) 


22.For each particle in Question 21, indicates whether the electrical charge or lack of electrical charge was from a neutral atom gaining electrons, losing electrons, or neither.

19. For each of the following elements, identify the number of protons or electrons needed for an electrically neutral atom.

A. _O2-( Gained an electron)

B. Cl (Neither)

C._HG2+  (Lost an electron)

D._Ag+ _{(Lost an electron)}

_{23. Write the symbol and show the electrical charge (if any) on the following atoms or ion:}

_{A. H}

_{B. S}

+

C. Cl -

_{D. Al}

+

24. Write the name and formula for the ionic compound that can be formed form these cations and anions:

A. k⁺ and I^- = KI

B. Ca²⁺ and S^2- = CaS

c. Fe³⁺ and Br^- = FeBr⁺

D. Ba²⁺ and OH^- = BaOh⁺

E. Nh₄⁺ and PO ^3- = Nh4PO^2-

F. Al³⁺ and O^2-= AlO²⁺

Water Diary, A-7 1-7

1.  Over the three days me and my family used 3,496 liters
2. On average on person per day used about 219 liters of water
3. Look at chart
4.The range is 734
5. The mean for our class was 477, and the median was 472. The mean is better for the expression of central tendency for the data
6.The average of liters per person is less in my family than the nations average. My family may have use less water than the nation on those three days, but everyday is different.
7.My average is closer to the nations average than the class average, especially because we had one student who used 950 Liters per person per day.

Page 50-51 #13-18

13-18

13. Look at drawing

14. Element: IV

Compound:III

15. Subscript and different chemical substance

16.a. 3 Hydrogen; 4 oxygen; 1 phosphorus

b. 1 sodium; 1 Oxygen, 1 Hydrogen

c.  1Solfur; 4 Oxygen

17. Look at drawing

18.NahCO₃ +HCl ---------> NaCl+ H₂O + CO₂

b. C6 H12 O6+ 06 ------> H₂O+ H₂O+H₂O+H₂O+H₂O+H₂O+CO₂+CO₂+CO_{2 (there aren't enough Oxygen elements)}

Etra Credit 1 Running Dry

The colorado river is the main source of water for california, where we live.  The damming of the colorado river allows us to have a reliable water source. Except for when there is a water shortage in the river, we may not be able to have a reliable source of water. Especially because we share the colorado river with many other states. Over the last decades there had been a shortage on the water, the water is running very low. The climate change maybe cause a decrease in the flow of the river. In the next 40 years the river is expected to loose 5 to 20 percent of its water. When the tempter starts to increase, more water is lost because of evaporation. Nevada has experienced some difficulties, especially because they only get a little percent of the river's water. The people of Nevada have to life on a very strict schedule with watering their pants, and cars because they only get a small portion and because the river is loosing some of its water.  Most people around the world are very worried about the water shortage. For example people of southwest Australians had the worst drought in almost a decade, they created a device where they could remove the salt out of the ocean water and purify it, allowing them to have larger source of water. The water shortage from the colorado river may strain our economy, and our life style. WIth a shortage of water in the colorado river we might be in a water shortage, in a water drought. So we need to conserve our water, and not take long showers, do the laundry once a week instead of two or three times a week

B1-b4 vocab

Matter: anything that occupies space and has mass
Physical Properties: Properties that can be observed and measured without changing the chemical make up of the substance
Density: which is  the mass of material within a given volume.
Freezing point: Where water freezes and turns into a solid.
Aqueous solution: a water-based solution
Mixture" When two or more substances combine, and yet the substances retain their individual properties
Heterogeneous mixture: Compositions that are not the same, or uniform, throughout
Suspension: solid particles that are large enough to settle out or can be separated by using filtration.
Colloid: when the particles are so small that they can't be filtered.
Homogeneous mixture: when the mixture is uniformed throughout
Solution: homogenous mixtures
Solute: the dissolved substance
Solvent: the dissolving agent
Particulate level: the realm of unseen atoms
Elements: matters that is made up of the same atom
Compound: A substance that is made up of two or more elements
molecule: the smallest part of a molocule

Blog 4 Page 33 1-3

1. See drawing
2. The diagram in the book represents Suspension because the particles all sank to the bottom.
3. See drawing

Page 50 #1-12

Blog 3 Chemistry

1.Physical property is properties that can be observed and measured without canting the chemical makeup of the substance.

2. Three physical properties of water: density, boiling point & melting point.

3. The density of solid water compares to liquid water because solid water is sold, which most of the time is frozen causing the water to condense. WIth liquid water is is more flowing, and can go everywhere, and not condense.

4. A setting where water is in a solid, a liquid and a gas at the same time when it snows, Because the water is always in the air, the snow is a solid form of the water, and once it hits the ground a liquid form appears.

5.Heterogeneous is when  there are different substances, not uniformed. When water and rocks are mixed. Homogeneous is when it is the same type of substance, uniformed. Lemonade and water.

6.You need to boil it, and which every substance has the lower boiling would be on top.

7.a.suspension

b. Suspension

c.solution

d.solution

e. Colloid

f. Colloid

8.Colloid, because there are such small particles, that the light goes off the particles. LIke the tydnell effect

10.Solution, because it is clear so it can't be colloid, and if there were no particles on the bottom then, it must be two  homogeneous solutions.

11. An element or a compound that is a material with a uniform, definite composition and distinct properties

12.a. Compound

b.Compound

c.Element

d.Element

e.Element

f.Compound

Unit 1a Vocab

Unit 1a Vocab

Filtration: solid particles that are separated from a liquid by passing the mixture through a material that retains the solid particles and allows the liquid to pass through

Filtrate: the liquid that is collected after it has been filtered

Percent recovery: the percent of original foul water sample that was saved

Histogram: shows the percent recovery made by all laboratory groups in your class

Range: the difference of the largest and smalls value

Average/mean: value by adding all the values together and dividing the sum by the total number of values.

Mean: Middle value

Electrical conductivity: ability to transmit electric currents.

Direct water use, Amount of water that can be directly measured

indirect water use: hidden uses of water that you never consider

Gaseous state: water vapor in the air

Liquid state: water in lakes, river, oceans

Solid state: ice, water that is solid

Surface water; water you get from a river

Ground water: water you get from a well or something

aquifer: pumps the water to the surface

Chemistry homework 2

Chemistry blog 2

A8 Page 22

1. Three water uses that i could do without would be washing floors, washing cares, and washing windows.

2.One activity that i couldn't do without would be showering

3.For showering I could reduce my water use, by showering for a shorter amount of time.

4a. Flushing the toilet.

4b. You could get the extra water direst water from washing dishes and put it in the toilet.

Page 23 #3-7

3.a. Indirect use of water

b.Direct use of water

c.Indirect use of water

4.To purify water means to get ride of the contaminates in the water, such as solids or oil.

5.Oil-water separation, sand filtration, charcoal adsorption and filtration.

6. First step the oil was removed, in the second step the the solids were removed, in the third step all the left over particles and dirt.

7.a.The foul water laboratory investigation could not covert seawater into water suitable for drinking because it doesn't get ride of  the salt.

b. An additional step you would have to do to make this water clean would be distillation, which gets ride of all the salt, making sea water suitable to drink.

Which is worse water shortage vs. water pollution?

Personally in my opinion i think that a water shortage would be worst than water pollution. With water pollution you can always filter out the water to make it pure, but with a water shortage it would be very difficult because we use water in many indirect ways to produce most of our food. So with a water shortage we wouldn't have the water to make orange juice, to make eggs, to make many of our everyday things. Making a water shortage worse

Chemistry homework 1

Blog number 1 Chemistry,

1. Right now in my opinion I think it would be more important to have water just normal water, than pure water. Because you can alway add chemicals to purify the water.

2.Page 23 1, 2, 8-13, 17

1. When Jimmy drank the package of fit juice during the water shortage, he still drank water, because water was needed to produce the fruit. 

2. The first indirect use of water when making a loaf of bread would be the eggs, because the chicken has to drink water to produce the egg. Another indirect use of water would be in the spray that you put in the pan so the loaf won't stick onto the pan. The third would be the butter, because butter is made out of milk, and the milk comes from cows, and cows drink water.

8.The world's total water changed in the past 100 to million of years because the continents have moved, and also because of global warming.

9.The order of water abundance on Earth from greatest to least would be oceans, glaciers, river and then water vapor.

10. The quote "water, water, everywhere, nor any drop to drink." this would describe a situation where there is a large source of water but all the water would be contaminated, and not drinkable.

11. 77% of water is used for irrigation and agriculture.

12.a.Glaciers and ice caps: 2.11% b. lakes .009%

13.A molecule of water that i drank today was once swallowed by a dinosaur, because all the water in the world is in a cycle, the water cycle.

17.The statistics are not correct, because in each capital there are more than 13 people per capital. and with those numbers it just does not make sence.

3.1. The east is the greets single use of water

2. In the east the people use most of their water for stream/electric, and in the west it is mostly used for irrigation/ agriculture. In the west there are farm lands and they use the water in the farms, unlike the east where there are very little farms, so they don't need to use most of their water on farming. Another regional factor that helps explain the general patterns of water uses in alaska they have many animals so they need to use most of their water on somatic purposes.

3. In the west most of their profits are made from food, in result of the economy, the farmers need to use their water for irrigation/agricultural purposes. In the east they use most of their water in stream/electric because that is the city of lights., new york, is there. And also because they get the coldest winters so they would need the heating.

Day one of chemistry

Hi my name is Dana.  Today is my first day of summer school and I am very excited to be in this class with all my friends. It is going to be a great summer, eventhough I am going to be working hard in this class, I am still going to enjoy the company of my friends. Although I am excited to be with my friends I'm very sad that I can't go surfing in the mornings, but once summer is over I will enjoy the waves and the sun and tanning.