4Al + 3O2 -> 2Al2O32Al2O3 + 6HCl -> 2AlCl3 + 3H2O2AlCl3 + 6NaOH -> 2AlOHOHOH3 + 6NaCl2AlOHOHOH3 -> Al2O3 + 3H2O
4Al + 3O2 -> 2Al2O3
2Al2O3 + 6HCl -> 2AlCl3 + 3H2O
2AlCl3 + 6NaOH -> 2AlOHOHOH3 + 6NaCl
2AlOHOHOH3 -> Al2O3 + 3H2O