AnswersCR SS Chemistry S2 201819 2026Unit Test

Unit Test Answers

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1
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HBr + KOH KBr + H2OIn this reaction, the acid is

Question illustration
A
HBr.
B
KOH.
C
KBr.
D
H2O.
2
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Which substances are most likely acids? Check all that apply.

A
CH4
B
HI
C
NH3
D
HNO3
E
NaCl
3

Select the chemical equation that most likely represents the reaction between the vinegar and the dolomite.

A
Option
B
Option
C
Option
D
Option
4

Choose the products that complete the reaction. The chemical equations may not be balanced.HCl + NaOH ?

Question illustration
A
NaCl + H2O
B
NaCl + CO2 + H2O
C
NaCl + H2
5

Choose the products that complete the reaction. The chemical equation may not be balanced.HC2H3O2 + Ca(OH)2 ?

Question illustration
A
Ca(C2H3O2)2 + H2O
B
Ca(C2H3O2)2 + CO2+ H2O
C
Ca(C2H3O2)2 + H2
6

Choose the products that complete the reaction. The chemical equation may not be balanced.NaHCO3 + HC2H3O2 ?

Question illustration
A
NaC2H3O2 + H2O
B
NaC2H3O2 + CO2 + H2O
C
NaC2H3O2 + H2
7

Identify the base in this acid-base reaction:

Question illustration
A
HC2H3O2
B
Mg(OH)2
C
Mg(C2H3O2)2
D
H2O
8

Identify the base in this acid-base reaction:

Question illustration
A
NaOH
B
HCl
C
NaCl
D
H2O
9

A piece of lithium metal is added to a beaker that contains water and phenolphthalein. Using what you know about the properties of bases, choose the best explanation for what you observe.

A
The phenolphthalein is turning pink because an acid is forming.
B
The phenolphthalein is turning pink because a base is forming.
C
The phenolphthalein is turning pink because the reaction is at equilibrium.
10

Select the most likely product for this reaction:

Question illustration
A
CO2(g) + H2O(l)
B
LiNO3(aq) + H2O(l)
C
LiNO3(aq) + H2(g) + O2(g)
11

Select the most likely product for this reaction:

Question illustration
A
AgOH(s) + NaNO3(aq)
B
Ag2O(s) + HNO3(aq)
C
Ag(s) + H2(g) + O2(g)
12

Cola contains phosphoric acid and carbonic acid. Which is the most likely reason that cola also contains a large amount of sugar or other sweetener?

A
to improve the fizziness
B
to counteract the sourness of the acids
C
to provide color to the drink
13

Which aisles of the grocery store would be likely to include examples of acids and bases? Choose all that apply.

A
frozen foods
B
plastic cups and bags
C
cleaning products
D
medical and health
E
juices
F
kitchen utensils and pots and pans
G
cooking and baking

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