Cl2 → HCl → CuCl2 → Cu → CuO → Cu(OH)2 решение

Cl2 → HCl → CuCl2 → Cu → CuO → Cu(OH)2

Cl2 + H2↑ = 2HCl

Cu(OH)2 + 2HCl = CuCl2 + 2H2O

или CuO + 2HCl = CuCl2 + H2O

CuCl2 → Cu + Cl2

2Cu + O2 = 2CuO

CuO + H2O = Cu(OH)2