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kseniya897
@kseniya897
April 2021
1
12
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Срочно! Составьте уравнения реакций для подтверждения амфотерных свойств оксидов и гидроксидов:
1.Zn(OH)2+
2.Zn(OH)2+
3.ZnO+
4.ZnO+
5.Al(OH)3
6.Al(OH)3
7.Al2O3+
8.Al2O3+
------------------------
Брать эти: Ca(OH)2,Cao,H2SO4,KOH,SO3,H3BO3,B2O,K2O
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Answers & Comments
Lebensinhalt
1) Zn(OH)2 + Ca(OH)2 =
CaZnO2 + 2H2O
2) Zn(OH)2 + H2SO4 = ZnSO4 + 2H2O
3) ZnO + 2KOH =
K2ZnO2 + H2O
4) ZnO + SO3 = ZnSO4
5) 2Al(OH)3 + K2O = 2KAlO2 + 3H2O
6) 2Al(OH)3 + 3H2SO4 = Al2(SO4)3 + 6H2O
7) Al2O3 + CaO =
Ca(AlO2)
2
8) Al2O3 + 2H3BO3 =
2
AlBO3
+
3
H2O
2 votes
Thanks 1
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Answers & Comments
2) Zn(OH)2 + H2SO4 = ZnSO4 + 2H2O
3) ZnO + 2KOH = K2ZnO2 + H2O
4) ZnO + SO3 = ZnSO4
5) 2Al(OH)3 + K2O = 2KAlO2 + 3H2O
6) 2Al(OH)3 + 3H2SO4 = Al2(SO4)3 + 6H2O
7) Al2O3 + CaO = Ca(AlO2)2
8) Al2O3 + 2H3BO3 = 2AlBO3 + 3H2O