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Splitting Redox Reactions

Posted: Thu Feb 15, 2018 4:36 pm
by Kaelie Blanes-Ronda 2L
How do you know where to split the reaction into half reactions? I know that a part is oxidized and the other is reduced but what about the other molecules that don't change signs?

Re: Splitting Redox Reactions

Posted: Thu Feb 15, 2018 7:08 pm
by Laura Riccardelli
This is an exccelent question. I was wondering the same thing.

Re: Splitting Redox Reactions

Posted: Thu Feb 15, 2018 8:47 pm
by Harrison Wang 1H
The other molecules whose oxidation states remain the same throughout the reaction are spectators and don't have to be written in the final reaction.

Re: Splitting Redox Reactions

Posted: Fri Feb 16, 2018 12:15 am
by David Minasyan 1C
The spectator ions get cancelled out anyway when you go from the ionic reaction to the net ionic reaction, I think. I don't think we need to know that for the test, but they cancel out anyway and don't matter.