Combined Science GCSE
Competing ions in aqueous electrolysis
What Competing ions in aqueous electrolysis means in Combined Science GCSE, as defined for AQA.
Definition of Competing ions in aqueous electrolysis
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Reference: AQA
In aqueous solution, water molecules dissociate slightly to give hydrogen ions, H⁺, and hydroxide ions, OH⁻, as well as the ions from the dissolved compound, and these positive and negative ions compete at the electrodes.
Topics that use Competing ions in aqueous electrolysis
- Electrolysis of aqueous solutions (AQA GCSE)
Related terms
- Anode
- Cathode
- Competing ions in aqueous solutions
- Formation of useful by-products
- Hypothesis
- Inert electrodes and electrode products
- Reactivity and ease of discharge
- Reactivity series and selective discharge
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