Write the equations of all reactions with which you can carry out the following transformations

Write the equations of all reactions with which you can carry out the following transformations aluminum-aluminum chloride-aluminum hydroxide-aluminum oxide-sodium metaaluminate-aluminum sulfate

1) Aluminum reacts with hydrochloric acid, we obtain aluminum chloride and hydrogen is released:

2Al + 6HCl → 2AlCl3 + 3H2 ↑ (substitution reaction);

2) Aluminum chloride reacts with sodium hydroxide as a result of the exchange reaction, we obtain aluminum chloride and aluminum hydroxide:

AlCl3 + 3NaOH → 3NaCl + Al (OH) 3 ↓ (exchange reaction);

3) When heated, aluminum hydroxide decomposes into aluminum oxide and water:

2Al (OH) 3 ↓ → Al2O3 + 3H2O (decomposition reaction);

4) Aluminum oxide reacts with sodium hydroxide, we obtain sodium aluminate and water:

Al2O3 + 2NaOH → 2NaAlO2 + H2O (exchange reaction);

5) Sodium aluminate reacted with sulfuric acid as a result of the presented reaction we get – sodium sulfate, aluminum sulfate and water:

2NaAlO2 + 4H2SO4 → Na2SO4 + Al2 (SO4) 3 + 4H2O (exchange reaction).