Key term for Edexcel GCSE Chemistry, used in Transition Metals, Alloys and Corrosion.
A unit of purity for gold alloys, expressing the proportion of pure gold in 24 parts of the whole.
Carat appears in Edexcel GCSE Chemistry revision content for Transition Metals, Quantitative Analysis and Equilibria, especially Transition Metals, Alloys and Corrosion and Uses of Metals.
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