Напишите пиу и сиу CuSO4-Cu(OH)2-CuO-CU
CuSO₄ + 2KOH = Cu(OH)₂↓ + K₂SO₄ Cu²⁺ + SO₄²⁻ + 2K⁺ + 2OH⁻ = Cu(OH)₂↓ + 2K⁺ + SO₄²⁻ Cu²⁺ + 2OH⁻ = Cu(OH)₂↓
Cu(OH)₂ = CuO + H₂O (t)
CuO + H₂ = Cu + H₂O