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Test Description: Solutions review for physical science midterm
Instructions: Answer all questions to get your test result.
1) The substance that is being dissolved in a solution is considered to be the
A
saturator
B
solute
C
solvent
D
saturated
2) Apple juice is an acid, which of the following would you expect to be the pH of apple juice?
A
9.2
B
3.3
C
7
D
7.5
3) In a neutralization reaction, an acid is mixed with a base to neutralize the substances. When this occurs, what is formed?
A
a weaker version of the original substances
B
water and a salt compound
C
water
D
carbon dioxide and water
4) Which of the following compounds would be considered a base?
A
HCl
B
KOH
C
HF
D
CH4
5) On a solubility curve graph, if a value is given that falls below the curve one can assume that the solution is
A
saturated
B
unsaturated
C
supersaturated
D
a solvent
6) In a lab, iodine dissolved easily in ethanol. In this case, iodine would be
A
the solution.
B
the saturation.
C
the solvent.
D
the solute.
7) A solution that has more dissolved solute than predicted by the solubility graph is said to be
A
unsaturated
B
supersaturated
C
polysaturated
D
saturated
8) What does it mean when a mixture is said to have reached saturation at a given temperature and pressure?
A
A dilute solution has been formed.
B
There is more solute than solvent in the mixture.
C
As much solute as possible is dissolved in the solvent.
D
The solute and solvent have formed a heterogeneous mixture.
9) A compound dissolves in water, and when tested, the student finds that it will conduct electricity. The type of compound that was dissolved was a(n) _____________ compound.
A
metallic
B
ionic
C
mixture
D
covalent
10) Which of the following will NOT increase the rate of solubility in a substance?
A
breaking the solute into smaller pieces
B
decreasing the temperature
C
increasing the temperature
D
stirring
11) Normal rainfall is is slightly acidic, which means its pH must be
A
between 5 and 7.
B
less than 2.
C
between 2 and 4.
D
between 7 and 9.
12) Which these is a base?
A
lemon
B
HCl
C
soap
D
apple juice
*select an answer for all questions
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