Mixtures (5.1.1.2) | AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Higher | KnowledgeSet

Mixtures

Chemistry (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Higher · Specification point · 5.1.1.2 · Atomic structure and the periodic table · A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

Choosing separation techniques

Mixtures

Distillation

Filtration

Crystallisation

Paper chromatography

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Learning Objectives

5.1.1.2 Mixtures

Content	Key opportunities for skills development
$A mixture consists of two or more elements or compounds not chemically combined together. The chemical properties of each substance in the mixture are unchanged. Mixtures can be separated by physical processes such as filtration, crystallisation, simple distillation, fractional distillation and chromatography. These physical processes do not involve chemical reactions and no new substances are made. Students should be able to: describe, explain and give examples of the specified processes of separation suggest suitable separation and purification techniques for mixtures when given appropriate information.$	$WS 2.2, 2.3 AT 4 Safe use of a range of equipment to separate chemical mixtures.$

Content

Key opportunities for skills development

A mixture consists of two or more elements or compounds not chemically combined together. The chemical properties of each substance in the mixture are unchanged. Mixtures can be separated by physical processes such as filtration, crystallisation, simple distillation, fractional distillation and chromatography. These physical processes do not involve chemical reactions and no new substances are made. Students should be able to: describe, explain and give examples of the specified processes of separation suggest suitable separation and purification techniques for mixtures when given appropriate information.

WS 2.2, 2.3 AT 4 Safe use of a range of equipment to separate chemical mixtures.