1.
4Al + 3O₂ = 2Al₂O₃
Al₂O₃ + 6HCI = 2AlCl₃ + 3H₂O
AlCl₃ + 3NaOH = Al(OH)₃↓ + 3NaCI
2Al(OH)₃ =t°= Al₂O₃ + 3H₂O
2.
4P + 5O₂ = 2P₂O₅
P₂O₅ + 3H₂O = 2H₃PO₄
2H₃PO₄ + 3Na₂O = 2Na₃PO₄ + 3H₂O
2Na₃PO₄ + 3CaCI₂ = Ca₃(PO₄)₂↓ + 6NaCI
3.
Zn + CI₂ = ZnCl₂
ZnCl₂ + 2KOH = Zn(OH)₂ + 2KCI
Zn(OH)₂ =t°= ZnO + H₂O
ZnO + 2HNO₃ = Zn(NO₃)₂ + H₂O
4.
2Cu + O₂ = 2CuO
CuO + 2HCI = CuCl₂ + H₂O
CuCl₂ + Ba(OH)₂ = Cu(OH)₂↓ + BaCI₂
Cu(OH)₂ =t°= CuO + H₂O
CuO + H₂ = Cu + H₂O
5.
N₂O₅ + H₂O = 2HNO₃
2HNO3 + FeO = Fe(NO₃)₂ + 2H₂O
Fe(NO₃)₂ + 2KOH = Fe(OH)₂↓ + 2KNO₃
Fe(OH)₂ + H₂S = FeS + 2H₂O
FeS + H₂SO₄ = FeSO₄ + 2H₂S
2)B
3)Б
4)Г