Summary Edexcel GCSE Chemistry Topic 2 - States of Matter and Mixtures
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Grade 9 1 GCSE Chem Edexcel Rev Gde Onli
Grade achieved: 9. I have put an immense amount of hard work into making this set of notes and it was well worth it as it enabled me to achieve the highest grade possible. My notes are based on class notes, online resources and the CGP textbook attached. Please don't hesitate to contact me for more...
A pure element or compound contains only one substance. Impure materials
are a mixture of elements and compounds.
Pure substances have a sharply defined melting point
Impure substances have a temperature range over which they melt
Solute – substance that has dissolved in a liquid to make a solution
Solution – formed when a substance has dissolved in a liquid
Insoluble – substance that cannot be dissolved in a certain liquid
Residue – material remaining in the filter after mixture has passed through it
Filtrate – solution passing through a filter
Solvent – the liquid in which a solute dissolve in to make a solution
Element Compound Mixture
Na H2O Air
C HCL Milk
K Al2O3 Salty water
H2 Ch4
Fe CO2
Li H2SO4
Al
N
O2
, Chromatograph
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