What is the net ionic equation of the reaction of FeCl2 with NaOH? Express you answer as a chemical equation including phases.
We first write down the balanced equation for this reaction:
This is a precipitation reaction, where two soluble salts are mixed together in solution forms to make a precipitate.
So, we can now write the ionic equation for this reaction, that is:
Now, we need to cancel the spectator ions, which are ions that are present on both sides in the equation. So, the equation becomes
The final net ionic equation is now:
The iron(II) hydroxide formed is easily oxidized when exposed to air and can easily become iron(III) hydroxide