Redox reactions
I can write half-equations and balanced ionic equations.
Redox reactions
I can write half-equations and balanced ionic equations.
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- Oxidation is the loss of electrons and reduction is the gain of electrons.
- Half equations can be written to show which species are oxidised and which are reduced.
- Ionic equations can be written for displacement reactions.
Keywords
Oxidation - Oxidation is a type of reaction in which a substance gains oxygen or loses electrons.
Reduction - Reduction is a type of reaction in which a substance loses oxygen or gains electrons.
Half equation - A half equation is a chemical equation used to show the electrons lost in oxidation or the electrons gained in reduction.
Redox reaction - A redox reaction is a reaction where both reduction and oxidation occur.
Common misconception
To show the spectator ions in an ionic equation.
Spectator ions are ions that remain the same throughout a reaction. They are not included in the ionic equation.
To help you plan your year 11 chemistry lesson on: Redox reactions, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 11 chemistry lesson on: Redox reactions, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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The assessment exit quiz will test your pupils' understanding of the key learning points.
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Explore more key stage 4 chemistry lessons from the Using Earth's resources unit, dive into the full secondary chemistry curriculum, or learn more about lesson planning.
Equipment
None required.
Licence
Lesson video
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Starter quiz
6 Questions
is the building block of all matter
an atom or group of atoms with a positive or negative charge
is made up of only one type of atom
is made up of 2 or more different elements chemically bonded together
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