Написать уравнения реакций Fe->FeCl3->Fe(OH)3->Fe2O3->Fe->FeS
2. Al->Al2O3->AlCl3->Al(OH)3->NaAlO2->Al(Na3)3
Срочноооо!!!
2. Al->Al2O3->AlCl3->Al(OH)3->NaAlO2->Al(Na3)3
Срочноооо!!!
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1) 2Fe + 3Cl2 -> 2FeCl3FeCl3 + 3NaOH -> Fe(OH)3 + 3NaCl
2Fe(OH)3 -> Fe2O3 + 3H2O
2Fe2O3 -> 4Fe + 3O2
Fe + S -> FeS
2) 4Al + 3O2 -> 2Al2O3
Al2O3 + 6HCl -> 2AlCl3 + 3H2O
AlCl3 + 3NaOH -> Al(OH)3 + 3NaCl
Al(OH)3 + NaOH -> NaAlO2 + 2H2O
NaAlO2 + 4HNO3 -> Al(NO3)3 + NaNO3 + 2H2O