Question

Fe->FeCl2->Fe(OH)2->Fe(OH)3->Fe(SO4)3

Answer 1

Ответ:

Fe + 2HCl = FeCl2 + H2↑

FeCl2 + 2NaOH = Fe(OH)2 + 2NaCl

4Fe(OH)2 + 2H2O + O2 = 4Fe(OH)3

2Fe(OH)3 + 3H2SO4 = Fe2(SO4)3 + 6H2O

Fe2(SO4)3 + 3BaCl2 = 2FeCl3 + 3BaSO4↓

3FeCl2 + 2Al = 2AlCl3 + 3Fe