OH or H20

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005199302
Posts: 108
Joined: Fri Sep 28, 2018 12:15 am

OH or H20

Postby 005199302 » Mon Feb 25, 2019 11:31 pm

When do we use OH versus H2O to balance the hydrogens on both sides. Are they interchangeable?

Jack DeLeon 1B
Posts: 30
Joined: Fri Sep 28, 2018 12:20 am

Re: OH or H20

Postby Jack DeLeon 1B » Mon Feb 25, 2019 11:57 pm

when balancing half reactions, h20 will generally be used to balance oxygen, but when in a basic environment, OH should then be used to balance the excess hydrogen

Brian Kwak 1D
Posts: 88
Joined: Fri Sep 28, 2018 12:17 am

Re: OH or H20

Postby Brian Kwak 1D » Tue Feb 26, 2019 11:41 am

When balancing half reactions first balance the Oxygens with H2O then depending on the type of solution it is you either add H+ to balance the hydrogens from H20 (in an acidic solution, usually the question will explicitly state it) or OH to balance the H from H20 (basic solution).


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