Сu -> CuO -> CuCl2 -> Cu(OH)2 -> CuO -> Cu
2Cu + O2 = 2CuO
CuO + 2HCl = CuCl2 + H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
Cu(OH)2 -> CuO + H2O
CuO + Fe = FeO + Cu
Сu -> CuO -> CuCl2 -> Cu(OH)2 -> CuO -> Cu
2Cu + O2 = 2CuO
CuO + 2HCl = CuCl2 + H2O
CuCl2 + 2NaOH = Cu(OH)2 + 2NaCl
Cu(OH)2 -> CuO + H2O
CuO + Fe = FeO + Cu