What is electrolysis?
The decomposition of an electrolyte by passing an electric current through it.
AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Foundation · 5.4.3.1
Revise AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Foundation specification point 5.4.3.1, The process of electrolysis, with free active-recall flashcards. Flip through the set or review every question and answer below.
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What is electrolysis?
The decomposition of an electrolyte by passing an electric current through it.
During electrolysis, which electrodes attract positive and negative ions?
What happens when ions are discharged at electrodes during electrolysis?
They gain or lose electrons, forming elements.
What condition must the ions in an ionic substance meet for electrolysis to occur?
They must be free to move.
What is an electrolyte?
A liquid or solution containing free-moving ions that allow it to conduct electricity.
Why does a solid ionic compound not conduct electricity?
Its ions are fixed in the lattice and cannot move.
Why can an ionic compound conduct electricity when molten or dissolved in water?
Its ions are free to move and carry charge through the liquid or solution.