Redox (I)

Gain of Oxygen

• Reduction

• Oxidation

Gain of Hydrogen

• Reduction

• Oxidation

Losing an electron is a / an ____________ reaction.

An oxidation reaction occurs when the oxidation state of the atom ________ (increases / decreases).

Loss of oxygen

• Oxidation

• Reduction

An oxidising agent is a reactant that ______ another substance.

It will get _________ in the process.

• oxidises; reduced

• reduces; oxidised

• oxidises; oxidised

• reduces; reduced

A reducing agent is a reactant that ______ another substance.

It will get _________ in the process.

• oxidises; reduced

• reduces; oxidised

• oxidises; oxidised

• reduces; reduced

What happened to copper in this reaction? Select all that applies.

Cu --> Cu2+ + 2e-

• Oxidation state of copper increased.

  Cu is oxidised.

• Oxidation state of copper decreased.

  Cu is reduced.

• Copper lost electrons.

  Copper was oxidised.

• Copper gained electrons. Copper was oxidised.

O.I.L. - Oxidation is Loss

R.I.G. - Reduction is Gain

This is true for:

• Oxygen transfer

• Hydrogen transfer

• Electron transfer

• Change in oxidation state