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MaryNevskaya
@MaryNevskaya
November 2021
1
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Составьте уравнения реакций в соответствии со схемой превращений:
1. ZnS ---> ZnO ----> Zn (NO3)2 ---> ZnO
2. ZnO ---> ZnSO4
3. ZnO ---> Zn
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Технец
1)
1. 2ZnS + 3O2 -> 2SO2 + 2ZnO
2. ZnO + 2HNO3 -> Zn(NO3)2 + H2O
3. 2Zn(NO3)2 -t-> 2ZnO + 4NO2 + O2
2)
1. ZnO + H2SO4 -> ZnSO4 + H2O
3)
1. 3ZnO + 2Al -> 3Zn + Al2O3
Прошу вас.
3 votes
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Answers & Comments
1. 2ZnS + 3O2 -> 2SO2 + 2ZnO
2. ZnO + 2HNO3 -> Zn(NO3)2 + H2O
3. 2Zn(NO3)2 -t-> 2ZnO + 4NO2 + O2
2)
1. ZnO + H2SO4 -> ZnSO4 + H2O
3)
1. 3ZnO + 2Al -> 3Zn + Al2O3
Прошу вас.