## Balancing number of electrons

veneziaramirez 3I
Posts: 57
Joined: Fri Sep 29, 2017 7:07 am

### Balancing number of electrons

To balance the number of electrons between the two half-reactions, we multiply each reaction by the least common multiple?

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

### Re: Balancing number of electrons

Yes because you want to make sure that the electrons cancel out when you write the final balanced redox reaction.

lindsay lathrop 2C
Posts: 29
Joined: Sat Jul 22, 2017 3:00 am

### Re: Balancing number of electrons

Yes, there is no need to go higher than the least common multiple because the sole goal is to just cancel them out. Furthermore, we want to keep the reaction as a whole in its simplest form as it is a representation, so to have extra molecules in this equation will be superfluous.

Jennifer Ho 1K
Posts: 31
Joined: Thu Jul 13, 2017 3:00 am

### Re: Balancing number of electrons

You can theoretically multiply the equations by any higher multiple as long as the electrons cancel out, but it's standard convention to have the coefficients in the final equation in their lowest whole number forms.

Ozhen Atoyan 1F
Posts: 50
Joined: Thu Jul 27, 2017 3:01 am
Been upvoted: 1 time

### Re: Balancing number of electrons

I don't think it matters until the end. You can just divide all of them to make them as simple as possible.

Jaewoo Jo 2L
Posts: 31
Joined: Fri Sep 29, 2017 7:06 am

### Re: Balancing number of electrons

Yes, you multiply by the least common multiple so you can get the electrons to cancel on both sides.

Veronica Rasmusen 2B
Posts: 49
Joined: Sat Jul 22, 2017 3:01 am

### Re: Balancing number of electrons

It would make most sense the multiply by the least common multiple so you won't have to do additional simplification at the end, however theoretically you could multiply by any multiple as long as the electrons cancel out

Caroline LaPlaca
Posts: 30
Joined: Sat Jul 22, 2017 3:01 am

### Re: Balancing number of electrons

You gotta make sure all the electrons are balanced.

Ashley Macabasco 2K
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

### Re: Balancing number of electrons

It does not matter what coefficient you use as long as the electrons cancel out in the end because you can always simplify the equations.

Emma Miltenberger 2I
Posts: 51
Joined: Thu Jul 27, 2017 3:00 am

### Re: Balancing number of electrons

The electrons on the left side of the equation must cancel with the electrons on the right side of the equation. It is simplest to do this using the least common multiple. However, as long as the electrons cancel, you can use a higher multiple and then simplify the equation after.

Yea Eun Lee 1H
Posts: 33
Joined: Fri Sep 29, 2017 7:06 am

### Re: Balancing number of electrons

It doesn't matter how you multiply as long as everything cancels out. However, it's most convenient to multiply by the least common factor