2KMnO4 (aq) + 10FeSO4 + 8H2SO4 -->
K2SO4 (aq) + 2MnO4 (aq) + 5Fe2SO4 (aq) + 8H2O (aq)
Spectator ions don't participate in the reaction.
The Attempt at a Solution
What gives? Is my professor bent on making our lives miserable? The answer for the above is: the spectator ions are K+ and SO4.
I understand spectator ions don't participate in the reaction... but what's so divinely different between K+ and SO4 that isn't happening in the other ions? There are two Sulfate ions in the productsby the way which adds to my confusion...