Need some help to balance these half reactions

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Hubba
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Need some help to balance these half reactions

Post by Hubba »

Hi,

I need some help with this redox question please. Should I turn the first equation, and then multiply, such I have 6e- on both equations?


"Use these half reactions to set up a total reaction and balance reaction between MnO4- and H2O2:

O2 (g) + 2 H+ (aq) + 2e- ---> H2O2 (aq)

MnO4- (aq) + 2 H2O (l) + 3e- ---> MnO2 (s) + 4 OH-(aq) "
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ChenBeier
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Post by ChenBeier »

You have two reduction reactions. There will be no reaction between. You need one oxidation. The answer I gave already in the other forum. The first reaction has to be developed with OH- to be on the correct side. H+ and OH- will neutralize it self to water.
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