Including H2O, H+, and OH- in balanced redox reactions

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Sierra Cheslick 2B
Posts: 61
Joined: Fri Sep 28, 2018 12:27 am

Including H2O, H+, and OH- in balanced redox reactions

Postby Sierra Cheslick 2B » Sun Feb 24, 2019 8:18 pm

After balancing a redox reaction, do we include H2O, H+, and OH- in the final equation if they cancel out in the products and reactants? For example, if a final balanced redox equation read:
6H2O + 3O3 +6OH- + Br- + 6e- yields 3O2 + 6OH- + BrO3- + 6H2O + 6e-
do we include the H2O and OH- in the final equation to show it is balanced?

Douglas Nguyen 2J
Posts: 71
Joined: Fri Sep 28, 2018 12:15 am

Re: Including H2O, H+, and OH- in balanced redox reactions

Postby Douglas Nguyen 2J » Sun Feb 24, 2019 8:18 pm

In the instance that they cancel out, you do not include them. If they do not completely cancel each other out, include them.

Tiffany_Cacy_3D
Posts: 70
Joined: Fri Sep 28, 2018 12:24 am

Re: Including H2O, H+, and OH- in balanced redox reactions

Postby Tiffany_Cacy_3D » Sun Feb 24, 2019 8:19 pm

No just like how you add and subtract the electrons that you include in the half reactions you can cancel out H20 in that situation as well.


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