Electrochemistry & Redox
5 terms
Redox Couple
Electrochemistry & Redox
V
The oxidised and reduced forms of the same species, considered together as a conjugate pair.
Ox / Red
Reducing Agent
Electrochemistry & Redox
V
A species that donates electrons to another substance and is itself oxidised in the process.
Reduction
Electrochemistry & Redox
Dimensionless
The gain of electrons by a species, accompanied by a decrease in its oxidation number.
Xⁿ⁺ + n e⁻ → X
Reference Electrode
Electrochemistry & Redox
V
A half-cell with a stable, known and reproducible potential, used as a fixed point against which other potentials are measured.
Rusting
Electrochemistry & Redox
Dimensionless
The corrosion of iron in the presence of both oxygen and water to form hydrated iron(III) oxide.
4Fe + 3O₂ + 2xH₂O → 2Fe₂O₃·xH₂O