1. AICI₃+3NaOH=AI(OH)₃↓+3NaCI
AI³⁺+3CI⁻+3Na⁺+3OH⁻=AI(OH)₃↓+3Na⁺+3CI⁻
AI³⁺+3OH⁻=AI(OH)₃↓
3.
а) 2AI(OH)₃+3H₂SO₄=AI₂(SO₄)₃+6H₂O
2AI(OH)₃+6H⁺+3SO₄=2AI³⁺+3SO₄²⁻+6H₂O
2AI(OH)₃+6H⁺=2AI³⁺+6H₂O
б) AI(OH)₃+NaOH=Na[AI(OH)₄]
AI(OH)₃+Na⁺+OH⁻=Na⁺+[AI(OH)₄]⁻
AI(OH)₃+OH⁻=[AI(OH)₄]⁻