Left and Right

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Brandon Tao 1K
Posts: 100
Joined: Sat Aug 17, 2019 12:15 am

Left and Right

Postby Brandon Tao 1K » Sun Mar 01, 2020 11:58 pm

Why do we need to do the left and right side reactions separately

connie 2C
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Joined: Thu Jul 11, 2019 12:17 am

Re: Left and Right

Postby connie 2C » Mon Mar 02, 2020 12:02 am

the two reactions are a redox reaction but it is easier to analyze the reaction by making them into two half-reactions

Posts: 101
Joined: Sat Jul 20, 2019 12:16 am

Re: Left and Right

Postby chemboi » Mon Mar 02, 2020 12:26 am

Splitting the net reaction into the two half reactions that occur at each electrode respectively make it clearer to work through the problem and see what's going on at each electrode.

kristi le 2F
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Joined: Thu Jul 11, 2019 12:15 am

Re: Left and Right

Postby kristi le 2F » Mon Mar 02, 2020 12:51 am

This way, we can also more clearly see which atoms are being reduced and oxidized and make sure the movement of electrons is accurate.

Ellen Amico 2L
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Joined: Thu Sep 19, 2019 12:16 am

Re: Left and Right

Postby Ellen Amico 2L » Mon Mar 02, 2020 12:54 am

By separating it into two half reactions, it's easier to balance everything and also add in species such as water or H+ if the reaction is occurring in acidic solution. Also, when you write the net ionic equation, it's easier to cancel things out in each reaction to produce the net ionic equation.

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