Question

Fe-Fe2O3-FeCl3-Fe(OH)3-Fe2O3-Fe-?

Answer 1

1) 4Fe + 3O₂ = 2Fe₂O₃
2) Fe₂O₃ + 6HCl = 2FeCl₃ + 3H₂O
3) FeCl₃ + 3NaOH = Fe(OH)₃ + 3NaCl
4) 2Fe(OH)₃ = Fe₂O₃ + 3H₂O
5) Fe₂O₃ + 3CO = 2Fe + 3CO₂