Question

1)CuSO4-Cu(OH)2-CuO-Cu

2)ZnCl2-Zn(OH)2-ZnCl2

Answer 1

1)

CuSO4 + 2NaOH => Cu(OH)2 + Na2SO4

Cu(OH)2 => CuO + H2O

2CuO => 2Cu + O2

2)

ZnCl2 +2NaOH => Zn(OH)2 + 2NaCl

Zn(OH)2 + 2HCl => ZnCl2 + 2H2O