The Process of Electrolysis (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards
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Electrolysis definition
Electrolysis definition
A process using electric current to separate ionic compounds into ions
Meaning of 'electrolysis'
Meaning of 'electrolysis'
Splitting using electricity
Required state for electrolysis
Required state for electrolysis
Molten or dissolved in solution
Why molten/dissolved needed
Why molten/dissolved needed
Ions free to move (fixed in solid lattice)
Electrolyte
Electrolyte
Ionic compound (molten/solution) with free-moving ions
Anode
Anode
Positive electrode
Cathode
Cathode
Negative electrode
What happens to + ions at cathode
What happens to + ions at cathode
Gain electrons (reduction)
What happens to - ions at anode
What happens to - ions at anode
Lose electrons (oxidation)
Process at cathode
Process at cathode
Reduction
Process at anode
Process at anode
Oxidation
Forms of discharged products
Forms of discharged products
Solid sediments or gases