1.Fe + 2HCl---> FeCl2(b) + H2 ........substitutie sau inlocuire
2. ?????? FeCl2 + 1/2Cl2-----> FeCl3.....nu sunt sigura ..........combinare
3.FeCl2 +2NaOH----> Fe(OH)2(e) +2NaCl .......dubla inlocuire
4.Fe + CuSO4----> FeSO4 (f) + Cu...........substitutie
5. 2Fe + 3Cl2---> 2FeCl3(d)...........combinare
6. FeCl3 + 3NaOH-----> 3NaCl + Fe(OH)3 (g)