4Al+3O2=2Al2O3
Al2O3+6HCl=2AlCl3+3H2O
AlCl3+3H2O=Al(OH)3+3HCl
2Al(OH)3=Al2O3+3H2O
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4Al+3O2=2Al2O3
Al2O3+6HCl=2AlCl3+3H2O
AlCl3+3H2O=Al(OH)3+3HCl
2Al(OH)3=Al2O3+3H2O