Galvanising: Coating iron in zinc as a form of sacrificial protection.
Oxidation: Gain of oxygen ions.
Reactivity series: The order in which metals will react with a non-metal, more reactive metals displacing less reactive metals.
Reduction: Loss of oxygen ions.
Rust: Compound formed when iron reacts with water and oxygen.
Sacrificial protection: Coating a less reactive metal in a more reactive metal, so the more reactive metal reacts with the surroundings and the less reactive metal is protected.
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Section 3 a) Specification
3.1 explain the terms homologous series, hydrocarbon, saturated, unsaturated, general formula and isomerism. A homologous series is a grou...
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