2NaCl = 2Na + Cl2.
Cl2 + H2 = 2HCl.
2HCl + Fe = FeCl2 + H2.
2FeCl2 + Cl2 = 2FeCl3.
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2NaCl = 2Na + Cl2.
Cl2 + H2 = 2HCl.
2HCl + Fe = FeCl2 + H2.
2FeCl2 + Cl2 = 2FeCl3.
Удачи)