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NastenOk11
@NastenOk11
July 2022
1
3
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осуществить цепочку превращения веществ: Zn-Zn(NO3)2-Zn(OH)2-Na2[Zn(OH)2]-ZnSO4
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Answers & Comments
pahandiy
2
Tl
O
H
(разб.)
+
Zn
(
N
O
3)
2 =
Zn
(
O
H
)
2↓ +
2
Tl
N
O
3
2
Na
O
H
(конц.)
+
Zn
(
O
H
)
2 =
Na
2
[
Zn
(
O
H
)
4]
4
H
N
O
3
(конц.)
+
Na
2
[
Zn
(
O
H
)
4]
=
Zn
(
N
O
3)
2 +
2
Na
N
O
3 +
4
H
2
O
2
Zn
(
N
O
3)
2 =
2
Zn
O
+
4
N
O
2↑ +
O
2↑
2 votes
Thanks 2
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Answers & Comments
4HNO3(конц.) + Na2[Zn(OH)4] = Zn(NO3)2 + 2NaNO3 + 4H2O 2Zn(NO3)2 = 2ZnO + 4NO2↑ + O2↑