The Process of Electrolysis (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
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Definition of electrolysis
Definition of electrolysis
Process using electric current to separate ionic compound into ions
Literal meaning of 'electrolysis'
Literal meaning of 'electrolysis'
Splitting using electricity
Required state of ionic compound for electrolysis
Required state of ionic compound for electrolysis
Molten or dissolved in solution
Why ions must be molten/dissolved for electrolysis
Why ions must be molten/dissolved for electrolysis
Ions need to be free to move (fixed in solid lattice)
Definition of electrolyte
Definition of electrolyte
Ionic compound in molten/solution form with free-moving ions
The positive electrode
The positive electrode
Anode
The negative electrode
The negative electrode
Cathode
Typical material type for electrodes
Typical material type for electrodes
Inert materials (don't react with electrolyte)
Ions attracted to cathode and what they do
Ions attracted to cathode and what they do
Positive ions; gain electrons (reduction)
Ions attracted to anode and what they do
Ions attracted to anode and what they do
Negative ions; lose electrons (oxidation)
Name of process at cathode
Name of process at cathode
Reduction
Name of process at anode
Name of process at anode
Oxidation
Path of electron flow in electrolysis
Path of electron flow in electrolysis
From anode to cathode through external circuit
Forms of discharged products from electrolysis
Forms of discharged products from electrolysis
Solid sediments or gases