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Chemistry
Chemistry
Problem
Which two sets of reactants best represent the amphoteric character of
Zn
(
OH
)
2
\text{Zn}(\text{OH})_2
Zn
(
OH
)
2
? Set 1:
Zn
(
OH
)
2
(
s
)
\text{Zn}(\text{OH})_2(\text{s})
Zn
(
OH
)
2
(
s
)
and
OH
−
(
aq
)
\text{OH}^-(\text{aq})
OH
−
(
aq
)
Set 2:
Zn
(
OH
)
2
(
s
)
\text{Zn}(\text{OH})_2(\text{s})
Zn
(
OH
)
2
(
s
)
and
H
2
O
(
l
)
\text{H}_2\text{O}(\text{l})
H
2
O
(
l
)
Set 3:
Zn
(
OH
)
2
(
s
)
\text{Zn}(\text{OH})_2(\text{s})
Zn
(
OH
)
2
(
s
)
and
H
+
(
aq
)
\text{H}^+(\text{aq})
H
+
(
aq
)
Set 4:
Zn
(
OH
)
2
(
s
)
\text{Zn}(\text{OH})_2(\text{s})
Zn
(
OH
)
2
(
s
)
and
NH
3
(
aq
)
\text{NH}_3(\text{aq})
NH
3
(
aq
)
a. 1 and 2 b. 1 and 3 c. 2 and 4 d. 3 and 4
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