1)H2SO4 + CuO = CuSO4 + H2O
2)CuSO4 + PbCl2 = CuCl2 + PbSO4
3)CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
4)Cu(OH)2 = CuO + H2O
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Answers & Comments
1)H2SO4 + CuO = CuSO4 + H2O
2)CuSO4 + PbCl2 = CuCl2 + PbSO4
3)CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
4)Cu(OH)2 = CuO + H2O