School Chemistry Notes: Index of pages describing methods of separating mixtures

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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

(Suitable for AQA, Edexcel and OCR GCSE chemistry students)

Part 1 Definitions in Chemistry, Elements, Compounds and Mixture pictures & Physical & Chemical Changes

Part 2 Methods of Separating Mixtures of Substances (full 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 valence  *  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  * working out formulae  *

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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 physical separation procedures are important in the isolation and purification of desired products from chemical reactions - they are important techniques to know about.

REMINDERS: A MIXTURE is a material made up of at least two substances which may be elements or compounds physically mixed together but are NOT chemically combined together, so the elements and compounds retain their original chemical properties ie components of a mixture retain their individual chemical properties, this can be important when considering formulations. Components of a mixture can be separated by physical means and these methods are described in detail via the links below.

DISTILLATION 2.1 Simple Distillation  *  2.2 Fractional Distillation


CHROMATOGRAPHY 2.3 Paper/Thin Layer Chromatography and 2.6 Gas Chromatography


2.4 Four physical 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 - particle theory of Gases, Liquids and Solids revision

(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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