Al2O3 + 6HCl = 2AlCl3 + 3H2O
Al2O3 + 2NaOH + 3H2O = 2Na[Al(OH)4]
Al2O3 + 2NaOH = 2NaAlO2 + H2O
Sn(OH)2 + 2HCl = SnCl2 + 2H2O
Sn(OH)2 + 2NaOH = Na2SnO2 + 2H2O
Sn(OH)2 + 2NaOH = Na2[Sn(OH)4]
Al2O3 + 6HCl = 2AlCl3 + 3H2O
Al2O3 + 2NaOH + 3H2O = 2Na[Al(OH)4]
Al2O3 + 2NaOH = 2NaAlO2 + H2O
Sn(OH)2 + 2HCl = SnCl2 + 2H2O
Sn(OH)2 + 2NaOH = Na2SnO2 + 2H2O
Sn(OH)2 + 2NaOH = Na2[Sn(OH)4]