Reaction with Fe and Cu
Bothe Fe and Cu could form ions of different charge. But how to determine
which to use for writing up the equation???
e.g. 2Fe + 3Cl2 -> 2FeCl3 why should use Fe3+ but not Fe2+??
Does it have to deal with the oxidation state ????
- 1 decade agoFavorite Answer
If the oxidising power of the element is stronger, then it can oxidise the metal to a higher oxidisation state.
2Fe + 3F2 → 2FeF3
2Fe + 3Cl2 → 2FeCl3
2Fe + 3Br2 → 2FeBr3
2Fe + 2I2 → 2FeI2
Cu is always to Cu2+ with F2, Cl2, Br2, I2(may not react or need strong heating)Source(s): myself