Question

помогите пожалуйста!!!

Answer 1

1) 1. 2Al + 6H₂O = 2Al(OH)₃ + 3H₂

2. Al(OH)₃ + 3HCl = AlCl₃ + 3H₂O

3. AlCl₃ + 3NaOH = Al(OH)₃ + 3NaCl

4. Al(OH)₃ + NaOH = Na[Al(OH)₄]

2) 1. 4Al + 3O₂ = 2Al₂O₃

2. Al₂O₃ + 2NaOH + H₂O = 2Na[Al(OH)₄]

3. Na[Al(OH)₄] = Al(OH)₃ + NaOH

4. 2Al(OH)₃ $=^{t}$ Al₂O₃ + 3H₂O

5. 2Al₂O₃ $=^{t}$ 4Al + 3O₂