Al→Al2O3→AlCl3→Al(OH)3→Al2O3

Question

Al→Al2O3→AlCl3→Al(OH)3→Al2O3

Answer 1

2Al + 3O2 = 2Al2O3
Al2O3 + 6HCl = 2AlCl3 + 3H2O
AlCl3 + 3NaOH = Al(OH)3 + 3NaCl
2Al(OH)3 = Al2O3 + 3H2O