Edexcel IGCSE Chemistry · Spec 1.8-1.9
Elements, Compounds & Mixtures
The differences between elements, compounds and mixtures, with examples.
Chemistry revision video
Elements, Compounds & Mixtures
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Spec 1.8-1.9
What you need to know
- Tell the difference between an element, a compound and a mixture
- Understand what we mean by a pure substance
- Use melting point as a test for purity
Active recall
Quick check
Answer each question before opening the answer.
Define element, compound and mixture.
Element — one type of atom. Compound — two or more elements chemically bonded together. Mixture — substances that are not chemically joined.
How do the properties of a compound differ from a mixture of the same elements?
A compound has fixed proportions and new properties and is hard to separate; a mixture keeps the properties of its parts and is easily separated.
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