BRAINCAKERedox Equations
You can use oxidation numbers to help you understand redox reactions.
You can also use oxidation numbers to help balance ionic equations.
For an equation to be balanced:
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Key terms in this lesson
- Ionic equation
- An equation that shows only the particles that react, leaving out spectator ions.
- Oxidation
- The addition of oxygen, the removal of hydrogen, the loss of electrons, or an increase in oxidation number.
- Oxidation number
- A number that represents the number of electrons an atom has lost or gained, or would do if the compound were fully ionic.
More in Oxidation and Reduction
- Oxidation State
- Rules for Oxidation State
- Working Out Oxidation States
- Superoxide
- Redox Reactions in Aqueous Solutions
- Thermite Reaction
- Half Equations from Ionic Equations
- Exam Style Question - 1
All 15 lessons in Oxidation and Reduction · All AQA AS-level Chemistry topics