The Process of Electrolysis (AQA GCSE Chemistry Combined Science): Flashcards
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Define electrolysis
Define electrolysis
Uses electric current to separate ionic compounds into constituent ions
Literal meaning of 'electrolysis'
Literal meaning of 'electrolysis'
Splitting using electricity
States required for electrolysis
States required for electrolysis
Molten or dissolved in solution
Why ions must be molten/dissolved
Why ions must be molten/dissolved
To be free to move (not fixed in lattice)
What is an electrolyte
What is an electrolyte
Ionic compound in molten/solution form with free ions
Positive electrode name
Positive electrode name
Anode
Negative electrode name
Negative electrode name
Cathode
Material of electrodes
Material of electrodes
Inert (non-reactive)
Process at cathode
Process at cathode
Reduction (gain electrons)
Process at anode
Process at anode
Oxidation (lose electrons)
Ions attracted to cathode
Ions attracted to cathode
Positive ions
Ions attracted to anode
Ions attracted to anode
Negative ions
Forms of discharged products
Forms of discharged products
Solid sediments or gases
Electron flow path
Electron flow path
Anode → external circuit → cathode