Oxidation and reduction in terms of oxygen, hydrogen and electrons; oxidation numbers; oxidising and reducing agents; and redox tests.
What is redox?
Redox reactions involve reduction and oxidation happening together. There are three ways to define them; learn all three.
| Oxidation | Reduction | |
|---|---|---|
| Oxygen | gain of oxygen | loss of oxygen |
| Hydrogen | loss of hydrogen | gain of hydrogen |
| Electrons | loss of electrons | gain of electrons |
Remember OIL RIG: Oxidation Is Loss, Reduction Is Gain (of electrons).
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