Writing Half-reactions

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Angela Wu-2H
Posts: 50
Joined: Fri Aug 30, 2019 12:16 am

Writing Half-reactions

Postby Angela Wu-2H » Sun Mar 01, 2020 11:23 pm

Instead of writing Zn --> Zn2+ + 2e- for oxidation, can I write: Zn - 2e- --> Zn2+ ?

This method seems to make more sense in my opinion because it allows me to think Zn is losing two electrons in order to form Zn2+, thus Zn minus 2 electrons. This makes the oxidation process more obvious in my opinion.

Charisse Vu 1H
Posts: 101
Joined: Thu Jul 25, 2019 12:17 am

Re: Writing Half-reactions

Postby Charisse Vu 1H » Sun Mar 01, 2020 11:27 pm

I think that conventionally, you always add things together rather than subtracting them. Zn is being broken down into 2 electrons and Zn2+. Although it does seem clearer to subtract the electrons because it lost them, I would just stick with adding 2 electrons to Zn2+ to keep things consistent.

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