1)Cu+2H2SO4=CuSO4+SO2+2H2O
2)2CuSO4+2NaOH=(CuOH)2SO4+Na2SO4
3)(CuOH)2SO4+2NaOH=2Cu(OH)2+Na2SO4
4)Cu(OH)2+2H2SO4=Cu(HSO4)2+2H2O
1)Cu+2H2SO4=CuSO4+SO2+2H2O
2)2CuSO4+2NaOH=(CuOH)2SO4+Na2SO4
3)(CuOH)2SO4+2NaOH=2Cu(OH)2+Na2SO4
4)Cu(OH)2+2H2SO4=Cu(HSO4)2+2H2O