Doc Brown's Chemistry KS4 science GCSE/IGCSE/O Level Chemistry Revision Notes


dissolving-stirring, filtering, evaporation, crystallising diagram of paper/thin layer chromatography at the end diagram of paper/thin layer chromatography at start

PART 2 Methods of separating mixtures are described e.g. ways of separating liquids, simple distillation, fractional distillation, paper chromatography, thin layer chromatography, filtration, evaporation, crystallisation, separating funnel, decantation, centrifuge, centrifuging, decanting-decantation, instrumental methods of analysis, glc gas-liquid chromatography, purifying substances - index of keywords-terms-phrases below

Part 1 Definitions in Chemistry, Elements, Compounds

and Mixture pictures & Physical & Chemical Changes

Part 2 Methods of Separating Mixtures of Substances (index further down page)

Part 3 How to write equations, work out formula and name compounds

Alphabetical list of KEYWORDS for Parts 1-3: atom  *  balancing equations (work your way down the section carefully)  *  centrifuges/centrifuging  *  chemical reaction/change  *  chromatography (paper/thin layer)  *  compound  *  covalencycrystallisation  *  decanting/decantation  * displayed formula  *  distillation (simple or fractional)  *  element  *  equations  *  evaporation  *  filtration  *  formula  * gas chromatography  *  impure/pure  *  insoluble  *  ionic equations  *  ionic valency  *  iron-sulphur separation and heating experiment  *  magnet  *  mixture  *  molecule  *  naming compounds and ions  *  particle pictures of elements/compounds/mixtures  *  physical change  *  precipitation  *  products  *  pure substance  *  purification  *  reactants  *  sand/salt separation  *  separating funnel  *  separating mixtures  *  soluble/solution/solvent/solute  *  solvent extraction  *  symbols (for elements, formula, in equations)  *   state symbols  *  EleCmdMix3.htm  * working out formulae  *


INDEX of METHODS of SEPARATING MIXTURES and purifying substances pages

The original 'huge' page has now been split into 4 separate pages accessed by the 4 links below

Many of these procedures are important in the isolation and purification of desired products from chemical reactions

DISTILLATION 2.1 Simple Distillation  *  2.2 Fractional Distillation


CHROMATOGRAPHY 2.3 Paper/Thin Layer Chromatography and 2.6 Gas Chromatography


2.4 Four techniques used in a particular and separation and purification procedure

e.g. How can we separate a mixture of sand and salt?, separating a salt from a salt preparation?


2.5 Miscellaneous Separation Methods and other apparatus uses

Separating funnel, magnet, solvent extraction, centrifuge


See other web page for:

(c) doc b KS3 Science GCSE/IGCSE Chemistry States of Matter - kinetic particle theory of Gases, Liquids and Solids revision notes

(c) doc b KS3-GCSE/IGCSE Types of Chemical Reaction revision notes

(c) doc b GCSE/IGCSE Chemical Bonding revision notes (ionic, covalent, metallic etc.)


GCSE balancing and completing equation exercises:

(1) multiple choice * (2) number/word multi-fill

GCSE 'name and formula' of a compound quizzes

(1) pick the name given the formula * (2) pick the formula given the chemical name

GCSE/IGCSE formula quiz given the name, type in the formula

GCSE/IGCSE name quiz given the formula, type in the name

KS3 Science-GCSE/IGCSE Elements, Compounds & Mixtures m/c QUIZ

KS3 Science-GCSE/IGCSE element name/symbol quiz

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ALPHABETICAL SITE INDEX for chemistry     


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