Half equations
What Half equations means in Combined Science GCSE, as defined for AQA.
Definitions of Half equations
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Half equations in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A representation of the reaction at one electrode only, including the reactant ion or molecule, the product, and the electrons gained or lost.
A representation of reactions at electrodes, showing electrons as products at the anode, assessed at Higher Tier only.
Topics that use Half equations
Related terms
- Anode
- Conservation of charge and mass
- Electrolysis
- Half equation
- Half equations and balancing
- Hydroxide ions
- Oxidation
- Oxidation and reduction
Using Half equations in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Combined Science questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge