Realizeaza urmatoarele transformari chimice, plz ajutatima

Răspuns:
2Cu + O₂ → 2CuO
CuO + 2HNO₃ → Cu(NO₃)₂ + H₂O
CuO + H₂SO₄ → CuSO₄ + H₂O
CuSO₄ + BaCl₂ → CuCl₂ + BaSO₄↓
CuCl₂ + 2KOH → Cu(OH)₂↓ + 2KCl
Cu(OH)₂ → CuO + H₂O
-Mihai