AnswersChemistryReactions in Aqueous Solutions

Reactions in Aqueous Solutions — Quiz Answers

30 verified answers2 views
1
Free Preview

Which substance is a strong electrolyte?

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

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
Zn times s plus 2 HCl aq rightarrow cap h sub 2 of g plus ZnCl sub 2 times 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
2 Li s plus cap f sub 2 of g rightarrow 2 LiF s
3

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute?

A
a strong electrolyte
B
a covalent electrolyte
C
a nonelectrolyte
D
a weak electrolyte
4

Which is an example of dissociation?

A
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
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
cap c plus cap o sub 2 rightarrow CO sub 2
D
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
5

In which process do ionic compounds separate into their oppositely charged constituent ions when they are dissolved in water?

A
electrolyte
B
hydration
C
dissociation
D
ionization
6

Which is a characteristic of a weak electrolyte?

A
It does not conduct electricity.
B
It partially dissociates or ionizes in water.
C
It easily conducts electricity.
D
It does not dissociate or ionize in water.
7

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
X
B
Z
C
Y
D
W
8

Nonelectrolytes fail to ionize or dissociate in water because

A
they are very weakly bonded to each other.
B
the water molecules keep them together by hydration.
C
they are very strongly bonded to each other.
D
they are forced together by the repulsion of water molecules.
9

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
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
C
Zn times s plus 2 HCl aq rightarrow ZnCl sub 2 times aq plus cap h sub 2 of g
D
Ca OH sub 2 s rightarrow CaO times s plus cap h sub 2 cap o g
10

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
NaCl
B
NaNO sub 3
C
AgCl
D
AgNO sub 3
11

Nonelectrolytes fail to ionize or dissociate in water because

A
the water molecules keep them together by hydration.
B
they are very weakly bonded to each other.
C
they are very strongly bonded to each other.
D
they are forced together by the repulsion of water molecules.
12

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
X
B
Z
C
W
D
Y
13

Which formula represents a double displacement reaction?

A
Ca OH sub 2 s rightarrow CaO times s plus cap h sub 2 cap o g
B
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
C
Zn times s plus 2 HCl aq rightarrow ZnCl sub 2 times aq plus cap h sub 2 of 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
14

Which is a characteristic of a weak electrolyte?

A
It does not conduct electricity.
B
It partially dissociates or ionizes in water.
C
It easily conducts electricity.
D
It does not dissociate or ionize in water.
15

Which is a characteristic of a weak electrolyte?

A
It partially dissociates or ionizes in water.
B
It does not conduct electricity.
C
It does not dissociate or ionize in water.
D
It easily conducts electricity.
16

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute?

A
a covalent electrolyte
B
a strong electrolyte
C
a nonelectrolyte
D
a weak electrolyte
17

In which process do ionic compounds separate into their oppositely charged constituent ions when they are dissolved in water?

A
hydration
B
electrolyte
C
ionization
D
dissociation
18

In which process do ionic compounds separate into their oppositely charged constituent ions when they are dissolved in water?

A
dissociation
B
electrolyte
C
ionization
D
hydration
19

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute?

A
a nonelectrolyte
B
a weak electrolyte
C
a covalent electrolyte
D
a strong electrolyte
20

Which is an example of dissociation?

A
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
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
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
D
cap c plus cap o sub 2 rightarrow CO sub 2

Did you find these answers helpful?

More from this Course

Quiz
49 verified answers

Quiz

Quiz
40 verified answers

Quiz

Quiz
10 verified answers

Quiz