Question

осуществить превращения cu-cuo3-cuso4^3-cu(oH)2-cuo

Answer 1

Cu ⇒CuO ⇒CuSO₄ ⇒Cu(OH)₂ ⇒CuO

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