How do you combine half reactions?

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Jorja De Jesus 2C
Posts: 121
Joined: Sat Jul 20, 2019 12:15 am

How do you combine half reactions?

Postby Jorja De Jesus 2C » Sat Feb 15, 2020 11:34 pm

Do you put all the reactants of each reaction together and all the products of each reaction together?

Alice Ma 2K
Posts: 52
Joined: Wed Nov 13, 2019 12:26 am

Re: How do you combine half reactions?

Postby Alice Ma 2K » Sat Feb 15, 2020 11:54 pm

Yes, and the electrons in both equations would cancel out with each other so you'll just be left with the products and reactants.

preyasikumar_2L
Posts: 101
Joined: Fri Aug 09, 2019 12:17 am

Re: How do you combine half reactions?

Postby preyasikumar_2L » Sun Feb 16, 2020 12:42 am

Yes, but you may need to multiply the half reactions by constants in order to get electrons or repeating reactants and products equal in order to cancel out completely.

ashwathinair
Posts: 113
Joined: Sat Aug 17, 2019 12:17 am

Re: How do you combine half reactions?

Postby ashwathinair » Sun Feb 16, 2020 4:57 pm

So would this be similar to how in Hess's law we would add intermediate equations to make the final reaction?

Matt F
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

Re: How do you combine half reactions?

Postby Matt F » Sun Feb 16, 2020 6:34 pm

^You could say that. I think combining half reactions is less about cancelling out reactants/products and more about fitting them on both sides of the reaction, but it's the same concept


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