Ответ:
1)Cu+S=CuS
2)2CuS+3O2=2CuO+2SO2
3)CuO+H2=Cu+H2O
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Ответ:
1)Cu+S=CuS
2)2CuS+3O2=2CuO+2SO2
3)CuO+H2=Cu+H2O