Ответ:

Al->Al2О3->Al2(SO4)3->Al(OH)3->АІСІ3​

4Al+3O2 → 2Al2O3

Al2O3+3H2SO4 → Al2(SO4)3+3H2O

Al2(SO4)3+6KOH → 3K2SO4+2Al(OH)3

Al(OH)3+3NaCl → AlCl3+3NaOH