Redox at electrodes
What Redox at electrodes means in Chemistry GCSE, as defined for AQA.
Definitions of Redox at electrodes
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Reference: AQA
At the cathode hydrogen ions gain electrons to form hydrogen gas, and at the anode hydroxide ions lose electrons to form oxygen gas.
At the cathode, metal ions gain electrons to form the metal, making electrolysis a reduction process at the cathode.
Topics that use Redox at electrodes
- Electrolysis of aqueous solutions (AQA GCSE)
- Using electrolysis to extract metals (AQA GCSE)
Related terms
- Anode
- Electrolysis
- Electrolysis of aqueous solutions
- Electrolysis of molten compounds
- Extraction of reactive metals
- Half-equations for reduction
- Halide preference at the anode
- Hypothesis development and testing
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