1. 2Mg+O2--->2MgO
2. Zn+S--->ZnS
3. 2H2+O2--->2H2O
4. CuO+H2--->Cu+H2O
5. Mg+H2O--->MgO+H2
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1. 2Mg+O2--->2MgO
2. Zn+S--->ZnS
3. 2H2+O2--->2H2O
4. CuO+H2--->Cu+H2O
5. Mg+H2O--->MgO+H2