Redox reaction
A reaction involving the transfer of electrons
Oxidation
The loss of electrons
Reduction
The gain of electrons
Oxidising agent
A substance that accepts electrons
Reducing agent
A substance that donates electrons
Anode
The electrode where oxidation takes place
Cathode
The electrode where reduction takes place
Electrolyte
A substance that can conduct electricity by forming free ions when molten or dissolved in solution.
Brine
A highly concentrated solution of sodium chloride
Spectator ions
Ions that do not take part in the transfer of electrons