1.CaCO3====CaO+H2O CaO+H20==Ca(oH)2
2.CaO+H2o===Ca(OH)2 Ca(OH)2+Na2CO3===2NaOH+H2O
3.H2SO4+CuO=CuSO4+H2O CuSO4+Fe=FeSO4+Cu
4.CaO+2HCl=CaCl2+H2O CaCl2+2NaOH=Ca(OH)2沉淀+2NaCl
1.CaCO3====CaO+H2O CaO+H20==Ca(oH)2
2.CaO+H2o===Ca(OH)2 Ca(OH)2+Na2CO3===2NaOH+H2O
3.H2SO4+CuO=CuSO4+H2O CuSO4+Fe=FeSO4+Cu
4.CaO+2HCl=CaCl2+H2O CaCl2+2NaOH=Ca(OH)2沉淀+2NaCl