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