Ответ:
Zn+H2SO4=ZnSO4+H2
H2+Cl2=2HCl
CuO+H2 = Cu+H2O
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Ответ:
Zn+H2SO4=ZnSO4+H2
H2+Cl2=2HCl
CuO+H2 = Cu+H2O