Cu-CuCl2-Cu(OH)2-CuO-Cu

Question

Cu-CuCl2-Cu(OH)2-CuO-Cu

Answer 1

Cu + 2HCl → CuCl₂ + H₂↑
CuCl₂ + 2NaOH → Cu(OH)₂↓ + 2NaCl
Cu(OH)₂ → CuO + H₂O
CuO + H₂ → Cu↓ + H₂O