What must happen to an ionic compound before it can be electrolysed?
The negative cathode.
At the anode, negative non-metal ions are oxidised.
They lose electrons and are oxidised to the non-metal.
It must be heated until molten.
Flashcards for AQA GCSE Chemistry 4.3.2 Electrolysis of molten ionic compounds, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 20 cards, matched to the AQA GCSE Chemistry (8462) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.