Half reactions

[ng1D]

In lecture, a redox reaction was separated into half reactions. What are half reactions and how are they separated?

[Rory Simpson 2F]

Half reactions separate the oxidation and the reduction reactions that occur in a redox reaction. You can use it to find out which elements are oxidized and reduced, and also balance redox reactions (since the number of electrons transferred should cancel out in the two half reactions combined.

[KarineKim2L]

One half reaction is the oxidation reaction, and one half reaction is the reduction reaction. Whatever is losing electrons would be in the oxidation reaction, and whatever is gaining electrons would be in the reduction reaction.

[ng1D]

When balancing redox reactions, are we balancing the number of atoms or electrons?

[Juliet Stephenson 4E]

When balancing redox reactions, are we balancing the number of atoms or electrons?

Both!

[Mariana Fuentes 1L]

A way of identifying redox reactions is : The LEO goes GER.

LEO: Lose Electrons Oxidation

GER: Gain Electrons Reduction

[Sreyes_1C]

A way of identifying redox reactions is : The LEO goes GER.

LEO: Lose Electrons Oxidation

GER: Gain Electrons Reduction

there's also OIL RIG, which is:
Oxidation Is Loss= OIL
Reduction Is Gain= RIG

which is referring to loss/gain of electrons

[Anna Chen 1K]

Half reactions are the two reactions involved in a redox reaction, oxidation and reduction. Oxidation is the reaction involving a loss of electrons; reduction is the reaction involving a gain of electrons.