Провести хим реакции 1. Zn - ZnS - ZnO - Zn - ZnSO4 2. Zn(OH)2 - ZnO 3. ZnO - ZnSO4
1. 3Zn + SO2 = ZnS + 2ZnO 2ZnS + 3O2 = 2ZnO + 2SO2 ZnO + C = Zn + CO Zn + H2SO4 = ZnSO4 + H2↑ 2. Zn(OH)2 = ZnO + H2O 3. ZnO + H2SO4 = ZnSO4 + H2O
1) Zn+H2S=ZnS+H2 ZnS+H2O=ZnO+H2S 2 ZnO=2 Zn+O2 Zn+H2SO4=ZNSO4+H2 2)Zn(OH)2=ZnO+H2O 3)ZnO+H2SO4=ZnSO4+H2O