half reaction

[Vanessa Rojas 4F]

What is a half reaction?

[Ronak Naik]

A half-reaction is a partial breakdown of a full chemical redox reaction that shows each individual species being oxidized (loss of electrons, electrons on the product side) or being reduced (gain of electrons, electrons on the reactant side).

[BritneyP- 2c]

A half reaction is when a chemical equation is broken up into 2 pieces. One is the substance that is oxidized, and the other is the one that is reduced. When you add both together, they should add up to the original equation.

[preyasikumar_2L]

A half reaction is either of the reduction (RED) or oxidation (OX) reaction components of a redox reaction.

[Rodrigo2J]

Based on what we did in class, I would say that a half reaction is split into an oxidation reaction and a reduction reaction. If you combine both reactions you should end up with the original reaction.

[DLee_1L]

Based on what we did in class, I would say that a half reaction is split into an oxidation reaction and a reduction reaction. If you combine both reactions you should end up with the original reaction.

From the example in class, is there a reason why the oxidation reaction only had the Fe giving off electrons and the reduction reaction including hydrogen and water?

[505316964]

When writing half reactons why is the number of electrons written in the equation being added?

For example in this oxidation:
5Fe = Fe3+ + 5e-

Why is the 5e- added and not subtracted?

[Maia_Jackson_2C]

When writing half reactons why is the number of electrons written in the equation being added?

For example in this oxidation:
5Fe = Fe3+ + 5e-

Why is the 5e- added and not subtracted?

I think this is because the net number of electrons cannot change, since the reaction is balanced and no new electrons are being added or subtracted.

[gabbymaraziti]

A half reaction is when a redox reaction is broken up into the reduction or oxidation components.