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Topic: Disproportionation Redox Reactions  (Read 4653 times)

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Offline Glorzifen

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Disproportionation Redox Reactions
« on: December 04, 2009, 04:20:47 PM »
For: Cl2(g) --> Cl- + ClO3 (basic solution)

Cl2(g) + 2e- --> 2Cl- (CORRECT)
Cl2 --> 2ClO3-, I don't see what's stopping me from just adding 2e- to the reactants side like the first half reaction. I know that's incorrect, but according to the steps I'm following...am I not supposed to balance the charges with electrons before any OH- business?

Offline Borek

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Re: Disproportionation Redox Reactions
« Reply #1 on: December 04, 2009, 05:08:30 PM »
Few hours ago I have explained that you balance ATOMS first, charge later, now you are asking if you should not balance charge first. I feel like I am wasting my time.
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Offline Glorzifen

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Re: Disproportionation Redox Reactions
« Reply #2 on: December 04, 2009, 07:05:08 PM »
Not at all.

Perhaps I didn't realize such a contradiction in what you were saying and what my prof told me, which was that I need to balance the half reaction ATOMS but usually not O and H unless they're participating. Initially I never needed to balance O and H so I had assumed I wouldn't need to later on.

In this case though, O is apparently more integral to the equation than before and thus needs to be balanced? I guess I just didn't see why O was more important here than in the other examples I've been working on. I can figure that on my own though, and I apologize for the confusion.

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