Can someone help me with some science questions?

Question

1. How does increasing the temperature of a solvent affect the solubility of a gas?

2. Explain why the temperature of water might increase when a solution forms.

3. Explain why crushing a solute increases the rate of solution.

4.Name and describe the three types of solutions.

5. Explain why oil does not dissolve in water.

6. Describe how you might increase the solubility of a solid in a liquid.

7. Explain how a solution can be both dilute and saturated.

8. Describe three different ways in which the concentration of a solution can be reported.

9. Define and give an example of an acid and of the base.

10.List the properties of acids and bases. Which of the properties of acids would you use to safely test whether an unknown substance was an acid or a base?

11. If you add hydrochloric acid (HCI) to magnesium (Mg) metal, what will you observe? What products form in this reaction?

12. Identify each of the following compounds as an acid, base, or salt: LiOH, H2CO3, Ba(OH)2, KCI.

Answer 1

1.decrease
2.some solutes are exothermic on dissolving
3.more surface area
4. saturated holds all it can
unsaturated can hold more
supersaturated is holding more than normal at that temp
5.like dissolves like
6.smaller particles, stir, heat
7.very little will dissolve
8.molarity, molality. gm/ml
9. HCl NaOH
10.Too many to list, but use litmus paper to test
11.gas bubbles, H2 gas and MgCl2
12.base,acid,base, salt

Answer 2

I'm guessing. High school was long ago. (Read the Friggin' book my taxes paid for BTW:))

1) the faster speed of the solvent molecules mean more space to trap the gas?
2)One of the by products may be heat?
3)The solute has more contact with whatever word they use for the solution base it gets dissolved in.
4) I can only remember a tincture is a solution with an alcohol base. They might be looking for saturated/Supersatureated/ and that third one for undersaturated, maybe dilute?

5) might have something to do with surface tension. I know a surficant (like) soap allows oil to go into solution with the soap-water solution and the big change is in the surface tension

6) crush it is one, stirring will help.
Do your own homework (these are hard:))

9) vinegar is an acid, baking soda reacts with it so maybe it is a base?

Answer 3

That's a lot of homework for me to do for you! How will you know that my answers are right?

1. The solubility of gas decreases as temperature of solvent increases.

3. The rate of solution, as you call it, increases with crushing of the solute because the surface area is increased.

9. NaOH, base, able to absorb H+ ; HCl, acid, able to donate H+.

12. base, acid, base, base

Answer 4

make a great volcano. then placed lego figures. make a concotion of vinegar and baking soda. then CA-enhance! lol or seek approximately tsunamis. did u understand that tsunamis interior the north and south poles freeze while they hit the air? that's simply by fact the currents interior the water are truly above freezing, and the air is lots under freezing. in simple terms study the sea. or do icicle carbon relationship. its somewhat cool. its like they take a center pattern from the icicle, and it tell scientists how the earth grow to be hundreds (even hundreds of thousands) of years in the past.

Answer 5

Are you serious?! You can spend 15 minutes and wiki or google this and you'd be done by now.