Question

Write the net ionic equation (including phases) that corresponds to fe(clo4)2

Answer 1

1) The question is incomplete. What is the compound which Fe(ClO4)2 reacts with?

It could be one of several salts.

2) Assuming it is Na2S the complete reaction is:

Fe(ClO4)2 (aq) + Na2S(aq) → FeS (s) + 2NaClO4 (aq)

So, the next steps how how to work this problem assuming that reaction.

3) Show the ionic compounds as separate ions.

Fe(2+) (aq) + 2 ClO4(-) (aq) + 2 Na(+) (aq) + S(2-) (aq) → FeS(s) + 2 Na(aq) + 2 ClO4(-) (aq)

That is the total ionic equation.

4) Cancel the ions that appear on both sides of the equation , Na(+) and ClO4(-).

Fe(2+) (aq) + S(2-) (aq) → FeS(s)  <-------- this is the net ionic equation

What happens to sodium and perchlorate is that they do not participate in the reaction but remain dissolved which is called "spectator ions".