AQA GCSE Chemistry
Fundamental Ideas in Chemistry
Atoms, elements, compounds, formulae, equations and the foundations of chemistry.
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Top Tips
- Molten = 2 products (metal and non-metal)
- Solution = 4 ions to choose from, 2 from the compound as well as H+ and OH- from the water
- Least reactive element reacts at the electrode
Additional Resources
📘 Specification
AQA GCSE Chemistry: Electrolysis
The official specification covering electrolysis, molten ionic
compounds, extraction of aluminium, aqueous solutions, the
required practical and half-equations.
📖 Topic Guide
Chemguide: Electrolysis
A free electrolysis hub covering the basic process, molten
compounds, aqueous solutions, inert and non-inert electrodes
and electrolysis calculations.
🎬 Animation & Demonstration
Chemguide: Electrolysis of Molten Compounds
Watch an animation of ion movement alongside experimental
demonstrations of molten electrolysis, then explore what happens
at each electrode.
💧 Aqueous Electrolysis
Seneca: Electrolysis of Aqueous Solutions
Free interactive revision on predicting products at the cathode
and anode when ionic compounds are electrolysed in aqueous solution.
⚡ Product Prediction
Chemguide: Electrolysis with Inert Electrodes
Work through examples of aqueous electrolysis and see how competing
ions and the reactivity series determine the products formed
at each electrode.
🔬 Required Practical
Seneca: Required Practical — Electrolysis
Review the apparatus, method and product tests for investigating
the electrolysis of aqueous solutions using inert electrodes,
with free interactive questions.
🧮 Higher Tier
Seneca: Electrolysis Half-Equations
Practise representing oxidation and reduction at electrodes
using balanced half-equations and electrons.
🚀 Challenge / Extend
Chemguide: Electrolysis Calculations
Go beyond GCSE by exploring the quantitative relationship between
electric charge, current, time, electrons and the amount of
substance produced during electrolysis.
🏭 Aluminium Extraction
RSC: Aluminium Extraction
See aluminium extraction on an industrial scale, with a video,
diagrams and supporting resources explaining the electrolysis
of aluminium oxide dissolved in molten cryolite.
🎲 Quiz
Generate a 10-question quiz on Metals.
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Exam Practice
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⭐ Challenge
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