AnswersChemistryReactions in Aqueous Solutions

Reactions in Aqueous Solutions — Quiz Answers

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21
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Which is an example of dissociation?

A
NH sub 3 plus cap h sub 2 cap o rightarrow NH sub 4 raised to the plus plus OH raised to the negative power power
B
Ca sub 3 open paren PO sub 4 close paren sub 2 rightarrow 3 Ca raised to the 2 plus power plus 2 PO sub 4 raised to the 3 minus power
C
SO sub 2 plus cap h sub 2 cap o rightarrow HSO sub 3 raised to the negative plus cap h raised to the plus power power
D
cap c plus cap o sub 2 rightarrow CO sub 2
22
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Which formula represents a double displacement reaction?

A
Pb open paren NO sub 3 close paren sub 2 aq plus 2 HCl aq rightarrow 2 HNO sub 3 aq plus PbCl sub 2 times s
B
Zn times s plus 2 HCl aq rightarrow ZnCl sub 2 times aq plus cap h sub 2 of g
C
Ca OH sub 2 s rightarrow CaO times s plus cap h sub 2 cap o g
D
cap c sub 2 cap h sub 5 OH l plus cap o sub 2 times g rightarrow CO sub 2 times g plus cap h sub 2 cap o g
23

Consider the equation. AgNO sub 3 times aq plus NaCl times aq rightarrow AgCl times s plus NaNO sub 3 times aq Which compound is the precipitate in this chemical reaction?

A
AgNO sub 3
B
NaCl
C
AgCl
D
NaNO sub 3
24

Nonelectrolytes fail to ionize or dissociate in water because

A
they are very strongly bonded to each other.
B
they are very weakly bonded to each other.
C
they are forced together by the repulsion of water molecules.
D
the water molecules keep them together by hydration.
25

The table shows the characteristics of four substances after they are placed in water. Substance Ion concentration Electrical conductivity W Medium Good X Low Poor Y High Excellent Z None None Which compound is most likely the strongest electrolyte?

A
Z
B
X
C
Y
D
W
26

Consider the equation. AgNO sub 3 times aq plus NaCl times aq rightarrow AgCl times s plus NaNO sub 3 times aq Which compound is the precipitate in this chemical reaction?

A
AgNO sub 3
B
NaNO sub 3
C
NaCl
D
AgCl
27

Which chemical reaction involves the production of a gas?

A
HNO sub 3 times l plus cap h sub 2 cap o l rightarrow cap h sub 3 cap o raised to the plus aq power plus NO sub 3 raised to the 1 power aq
B
2 Li s plus cap f sub 2 of g rightarrow 2 LiF s
C
Zn times s plus 2 HCl aq rightarrow cap h sub 2 of g plus ZnCl sub 2 times aq
D
cap k sub 2 CrO sub 4 aq plus Ba open paren NO sub 3 close paren sub 2 aq rightarrow BaCrO sub 4 times s plus 2 KNO sub 3 aq
28

Which chemical reaction involves the production of a gas?

A
2 Li s plus cap f sub 2 of g rightarrow 2 LiF s
B
HNO sub 3 times l plus cap h sub 2 cap o l rightarrow cap h sub 3 cap o raised to the plus aq power plus NO sub 3 raised to the 1 power aq
C
cap k sub 2 CrO sub 4 aq plus Ba open paren NO sub 3 close paren sub 2 aq rightarrow BaCrO sub 4 times s plus 2 KNO sub 3 aq
D
Zn times s plus 2 HCl aq rightarrow cap h sub 2 of g plus ZnCl sub 2 times aq
29

Which substance is a strong electrolyte?

A
cap c sub 12 cap h sub 22 cap o sub 11
B
Ba OH sub 2
C
NH sub 3
D
CH sub 3 COOH
30

Which substance is a strong electrolyte?

A
CH sub 3 COOH
B
cap c sub 12 cap h sub 22 cap o sub 11
C
Ba OH sub 2
D
NH sub 3

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