Cu+CuCl2+Cu(NO3)2+Cu(OH)2+CuO+CuSO4

Cu + Cl₂ => CuCL₂

CuCL₂ + 2AgNO₃ => Cu(NO₃)₂ + 2AgCL

Cu(NO₃)₂ + 2NaOH => Cu(OH)₂ + 2NaNO₃

Cu(OH)₂ => CuO + H₂O

CuO + H₂SO₄ => CuSO₄ + H₂O