Electrolysis and Redox Reactions

Redox Reactions

Reduction and oxidation occurring together; oxidation is the loss of electrons, while reduction is the gain of electrons.

OILRIG

Acronym for "Oxidation Is Loss, Reduction Is Gain."

Electrolysis

Decomposition of ionic compounds by electric current; anions move to the anode, cations to the cathode.

Anode Reaction

Oxidation occurs at the anode; anions lose electrons and form new substances.

Cathode Reaction

Reduction occurs at the cathode; cations gain electrons and form new substances.

Electrolytes

Substances conducting electricity in water or molten state; dissociate into ions for current flow.

Half Equations

Representing reactions at electrodes during electrolysis.

Copper Chloride Electrolysis

Process where Cu2+ and Cl- ions are attracted to oppositely charged electrodes.

Aluminium Extraction

Aluminium extracted from bauxite through electrolysis in molten cryolite.

Copper Purification

Impure copper purified through electrolysis; impurities settle as "Anode sludge."

Electroplating

Deposition of a thin metal layer onto a surface through electrolysis.

Electroplating with Tin

Tin ions reduced at the cathode to form solid tin; tin metal oxidized at the anode.