Al2(SO4)3 + 3CaCl2 = 2AlCl3 +3 CaSO4
AlCl3 + 3NaOH = Al(OH)3 +3 NaCl
2Al(OH)3 = Al2O3 +3 H2O
2Al2O3 = 4Al +3 O2
Al2(SO4)3 + 3CaCl2 = 2AlCl3 +3 CaSO4
AlCl3 + 3NaOH = Al(OH)3 +3 NaCl
2Al(OH)3 = Al2O3 +3 H2O
2Al2O3 = 4Al +3 O2