CaCO3=(煅烧)CaO+CO2, CaO+H2O=Ca(OH)2
Mg+2HCl=MgCl2+H2 MgCl2+2NaOH=Mg(OH)2(沉淀)+2NaCl
CaCl2+Na2CO3=CaCO3(沉淀)+2NaCl CaCO3+2HNO3=Ca(NO3)2+H2O+CO2
2Cu+O2(加热)=2CuO CuO+H2SO4=CuSO4+H2O
CaCO3=(煅烧)CaO+CO2, CaO+H2O=Ca(OH)2
Mg+2HCl=MgCl2+H2 MgCl2+2NaOH=Mg(OH)2(沉淀)+2NaCl
CaCl2+Na2CO3=CaCO3(沉淀)+2NaCl CaCO3+2HNO3=Ca(NO3)2+H2O+CO2
2Cu+O2(加热)=2CuO CuO+H2SO4=CuSO4+H2O