Question

Запишите уравнения реакций  Cu ⟶ CuO ⟶ CuSO4 ⟶ Cu(OH)2 ⟶ CuO ⟶ Cu;

Answer 1

2Cu + O2 = 2CuO
CuO + H2SO4 = CuSO4 + H2O
CuSO4 + 2NaOH = Na2SO4 + Cu(OH)2↓
Cu(OH)2 = CuO + H2O     (t0)
CuO + H2 = Cu + H2O     (t0)