Question

Lập PTHH :

Na2O + P2O5 → Na3PO4

Cu(NO3)2 → CuO + O2 + NO2

Al(OH)3 → Al2O3 + H2O

Fé2 + O2 → Fe2O3 + SO2

Answer 1

3Na₂O + P₂O₅ -> 2Na₃PO₄

2Cu(NO₃)₂ → 2CuO + 4NO₂ + O₂

2Al(OH)₃ → Al₂O₃+ 3H₂O

4FeS₂ + 11O₂ → 2Fe₂O₃ + 8SO₂

Answer 2

3Na2O

+

P2O5

→

2Na3PO4

2Cu(NO3)2

→

2CuO

+

4NO2

+

O2

2Al(OH)₃ → Al₂O₃ + 3H₂O

4FeS₂ + 11O₂ → 2Fe₂O₃ + 8SO₂

Answer 3

3Na₂O+P₂O₅ -> 2Na₃PO₄

_{2Cu (NO3)2->2CuO + O2+ 4NO2}

_{2Al(OH)3-> Al2O3+ 3 H2O}

Answer 4

Cảm ơn m.n =))