Tips for Balancing Reactions

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Jessica Li 4F
Posts: 115
Joined: Fri Aug 09, 2019 12:16 am

Tips for Balancing Reactions

Postby Jessica Li 4F » Sun Feb 23, 2020 11:39 pm

Does anyone have good tips as to how they balance redox reactions, especially the ones where you have to add H+/OH- and H2O because they're in acidic/basic solutions? Thanks!

Petrina Kan 2I
Posts: 102
Joined: Fri Aug 30, 2019 12:17 am

Re: Tips for Balancing Reactions

Postby Petrina Kan 2I » Sun Feb 23, 2020 11:43 pm

My TA gave us these tips!

In an acidic solution:
If there is more O in the reactants, use H30+--->H2O
If there is more O in the products, use H2O--->H3O+

In a basic solution:
If there is more O in the reactants, use H2O--->OH-
If there is more O in the products, use OH- ---> H2O

Hope this helps!

Eesha Sohail 1D
Posts: 100
Joined: Sat Aug 17, 2019 12:16 am

Re: Tips for Balancing Reactions

Postby Eesha Sohail 1D » Sun Feb 23, 2020 11:53 pm

What solutions might I commonly see in a redox problem, in either case? Asking for identification purposes.

peteryim
Posts: 54
Joined: Sat Sep 07, 2019 12:17 am

Re: Tips for Balancing Reactions

Postby peteryim » Sun Feb 23, 2020 11:55 pm

Also, just adding onto the above point, if the solution is basic, then you can add OH- to the reactants. If acidic, you can add H+. It's really just trial and error until you make it work.


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