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Physical Science Review 7.1
Test Description: Understanding Solutions
Instructions: Answer all questions to get your test result.
1) A solution is made by dissolving some salt in a beaker of water. The salt is referred to as the
A
solution
B
solvent
C
precipitate
D
solute
2) When KCl dissolves in water, the following will be produced.
A
KCl molecules
B
K+ and Cl- ions
C
K atoms and Cl2 molecules
D
K- and Cl+ ions
3) When CO2 dissolves in water, the following will be produced
A
C atoms and O2 molecules
B
C-4 and O+2 ions
C
C+4 and O-2 ions
D
CO2 molecules
4) In which of the following phases can a solution be made?
A
gas and liquid phases only
B
solid and liquid phases only
C
liquid, solid, and gas phases
D
solid and gas phases only
5) Carbon tetrachloride, a liquid, settles to the bottom of a test tube after being shaken with water. This type of mixture is called a
A
suspension
B
solution
C
solvent
D
colloid
6) What solute will be able to conduct electricity when dissolved?
A
CF4
B
BaF2
C
NO2
D
SO3
7) What do solutes do to freezing and boiling points of solutions?
A
lower freezing point and raise boiling point
B
raise freezing point and boiling point
C
raise freezing point and lower boiling point
D
lower freezing point and boiling point
8) The ______________ of solute makes it harder for liquid molecules to move apart and become _______
A
presence; gas
B
lack; gas
C
presence; solid
D
lack; solid
9) Mrs. Knoll aims a flashlight at some orange juice. The light is scattered because orange juice is a
A
solvent
B
colloid
C
suspension
D
solution
10) The substance in a solution that is present in the largest amount is the
A
solvent
B
solution
C
solute
D
precipitate
*select an answer for all questions
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