1.CaO+H2O==Ca(OH)2
2.(1)Ca(OH)2+Na2CO3==CaCO3↓+2NaOH
(2)2NaOH+CuSO4==Cu(OH)2↓+Na2SO4
3.(1)Cu(OH)2=加热=CuO+H2O
(2)2H2O=通电=2H2↑+O2↑
4.H2+ CuO=加热=Cu+H2O↑
1.CaO+H2O==Ca(OH)2
2.(1)Ca(OH)2+Na2CO3==CaCO3↓+2NaOH
(2)2NaOH+CuSO4==Cu(OH)2↓+Na2SO4
3.(1)Cu(OH)2=加热=CuO+H2O
(2)2H2O=通电=2H2↑+O2↑
4.H2+ CuO=加热=Cu+H2O↑