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Phases of Matter and Solubility Review

Total questions: 25

Worksheet time: 50mins

Name
Class
Date
1.
What is the solubility of KBr at 10 degrees C?
a)
62 grams
b)
70 grams
c)
50 grams
d)
10 grams
2.
Solubility is defined as...
The amount of _______ that can be dissolved at a given ________ to form a _______ solution.
a)
Solute, solvent, saturated
b)
Solute, temperature, supersaturated
c)
Solute, temperature, saturated
d)
Solvent, temperature, saturated
3.

What is happening at point B if heat is entering the matter?

a)

melting

b)

freezing

c)

evaporating

d)

condensing

4.

What is happening at point B is heat is leaving the matter?

a)

melting

b)

freezing

c)

evaporating

d)

condensing

5.
What does "#1" represent on the graph? 
a)
solid phase
b)
melting
c)
liquid phase
d)
boiling 
6.

Which of the following would happen at higher temperatures?

a)

Particles in an object move faster

b)

Particles in an object move slower

c)

Particles in an object have less energy

d)

gas particles bump into each other less

7.
When a gas changes its phase and turns into a liquid it is known as
a)
condensation.
b)
sublimation.
c)
vaporization.
d)
freezing or solidification.
8.
The drops of water that appear on the outside of a glass of cold juice on a warm day are an example of?
a)
Sublimation: A solid turning into a gas.
b)
Condensation: A gas changing to a liquid.
c)
Evaporation: A liquid changing to a gas.
d)
Deposition: A gas changing to a solid.
9.
Adding HEAT to matter causes its particles to:
a)
move faster and farther apart
b)
Move slower and farther apart
c)
Move faster and closer together
d)
Move slower and closer together
10.

What is a solvent

a)

A liquid that will dissolve a solid solute

b)

Another word for solution

c)

A thing that make drinks change color

d)

Usually the solid about to be dissolved

11.

Which of the following would increase the amount of solute dissolved?

a)

decreasing temperature

b)

increasing temperature

c)

decreasing amount of solvent

d)

increasing amount of solute

12.
When 20 grams of potassium chlorate, KClO3, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:
a)
supersaturated
b)
saturated
c)
unsaturated
13.
When 50 grams of KCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:
a)
supersaturated
b)
unsaturated
c)
saturated
14.

_____________ temperature will cause the gas to move more rapidly.

a)

decreasing

b)

increasing

c)

leveling

d)

surface tension

15.
Alex noticed that a metal door that sticks on hot days does not stick when it cools off at night. This is because the metal contracts as it cools. The reason for this is that, as the metal cools, the atoms:
a)
become smaller and take up less space
b)
 slow down and move closer together
c)
merge together to form fewer atoms
d)
speed up and move farther apart
16.
How does a solution become supersaturated?
a)
dissolve lots of solute in it.
b)
dissolve a little solute in it. 
c)
dissolve more solute than you should be able to. 
d)
dissolve a solvent in it. 
17.
The ionic solid that's solubility is least affected by temperature is:
a)
NaNO3
b)
KNO3
c)
KCl
d)
NaCl
18.
Adding HEAT to matter causes its particles to:
a)
move faster and farther apart
b)
Move slower and farther apart
c)
Move faster and closer together
d)
Move slower and closer together
19.

The substance that gets dissolved (usually a solid)

a)

Solute

b)

Solvent

c)

Solution

d)

Saturated

20.

When the maximum amount of solute dissolves in a solvent.

a)

Solute

b)

Solvent

c)

Solution

d)

Saturated

21.

What can best increase the conductivity of a solution?

a)

Having a higher concentration of the solute

b)

Decreasing the amount of solute in solution

c)

By agitating the solution

d)

By increasing the amount of the solvent

22.
Matter changes state when...
a)
energy is added or removed
b)
energy is added
c)
energy is removed
d)
there is no energy
23.
What will allow more solute to be dissolved in a solvent.
a)
adding more solute
b)
stiring
c)
cooling solution
d)
heat
24.
Graph that shows the amount of solute that can be dissolved in 100 g of water at a certain temperature.
a)
Solubility curve
b)
Saturation curve
c)
Concentration curve
d)
Molarity curve
25.
When a solvent contains as much of the solute as it can hold, the solution is said to be
a)
supersaturated
b)
diluted
c)
saturated
d)
unsaturated

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