The Process of Electrolysis (Edexcel GCSE Chemistry): Flashcards

Uses electric current to separate ionic compound into ions

Splitting using electricity

So ions are free to move, not fixed in crystal lattice

Ionic compound (molten/solution) with free-moving ions

Positive electrode

Negative electrode

Positive ions

Negative ions

Reduction (ions gain electrons)

Oxidation (ions lose electrons)

$M^+ + e^- \rightarrow M$

$X^- \rightarrow X + e^-$

Solid sediments or gases

Don't react with electrolyte; reactions only at surface