Объяснение:
1. 4Al + 3O₂ = 2Al₂O₃
2. Al₂O₃ + 6HNO₃ = 2Al(NO₃)₃ + 3H₂O
3. Al(NO₃)₃ + 3NaHCO₃ = 3NaNO₃ + Al(OH)₃ + 3CO₂
4. 2Al(OH)₃ = Al₂O₃ + 3H₂O
Объяснение:
1. 4Al + 3O₂ = 2Al₂O₃
2. Al₂O₃ + 6HNO₃ = 2Al(NO₃)₃ + 3H₂O
3. Al(NO₃)₃ + 3NaHCO₃ = 3NaNO₃ + Al(OH)₃ + 3CO₂
4. 2Al(OH)₃ = Al₂O₃ + 3H₂O