electrons

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Jasmine Botello 2F
Posts: 67
Joined: Fri Sep 29, 2017 7:04 am

electrons

Postby Jasmine Botello 2F » Thu Feb 15, 2018 9:58 am

when you separate the redox reaction into the half reactions, should the electrons be put in both half reactions?

Humza_Khan_2J
Posts: 56
Joined: Thu Jul 13, 2017 3:00 am

Re: electrons

Postby Humza_Khan_2J » Thu Feb 15, 2018 10:06 am

Yes, this is an important part of balancing redox reactions. Conservation of charge dictates that there must be equal amounts of electrons on both sides.

Michelle Steinberg2J
Posts: 73
Joined: Fri Sep 29, 2017 7:04 am

Re: electrons

Postby Michelle Steinberg2J » Thu Feb 15, 2018 1:00 pm

Yes! There should be electrons in both equations. Oxidation occurs when the charge increases, thus we have lost electrons (losing electrons=positive). Reduction occurs when the charge decreases, thus we have gained electrons (gaining electrons=negative). In an oxidation half reaction we see the electrons as a product. In a reduction half reaction we see the electrons as a reactant.

Charles Ang 1E
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

Re: electrons

Postby Charles Ang 1E » Fri Feb 16, 2018 6:08 pm

Yes, because the electrons need to be on both sides so they can be canceled out. If one side does not have electrons, I would double check or consider if the half reaction I identified was incorrect.


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