1) Zn+H2SO4=ZnSO4+H22)CuO+H2SO4=CuSO4+H2O
3)Ca(OH)2+H2SO4=CaSO4+2H2O
4)Zn+2H2O=Zn(OH)2+H2
5)CuO+CO2=CuCO3
6)Ca(OH)2+CO2=CaCO3+H2O
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Answers & Comments
1) Zn+H2SO4=ZnSO4+H2
2)CuO+H2SO4=CuSO4+H2O
3)Ca(OH)2+H2SO4=CaSO4+2H2O
4)Zn+2H2O=Zn(OH)2+H2
5)CuO+CO2=CuCO3
6)Ca(OH)2+CO2=CaCO3+H2O