GCSE Chemistry (AQA)

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Mixtures

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Atomic structure and the periodic table A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes

Mixtures

3:36 Mixtures
Spec 4.1.1.2
Previous Advanced Chemical Equations Next Solvent, Solute & Solution
  • A mixture consists of two or more elements or compounds not chemically combined.
  • In a mixture, atoms are not chemically bonded, unlike in compounds.
  • The chemical properties of substances in a mixture remain unchanged.
  • Hydrogen is flammable, and this property remains in a mixture like air.
  • Mixtures can consist of just elements, just compounds, or a combination of both.
  • Mixtures of elements can be individual atoms or molecules of a single element.
  • Mixtures of compounds involve different compounds with atoms from different elements bonded together.
  • Mixtures of both elements and compounds include molecules of a single element and compounds of different elements.
  • Mixtures cannot be represented by formulae due to variable proportions of components.
  • Examples show mixtures with different proportions of compounds, illustrating variability.

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