Doc Brown's Chemistry
for KS4 Science GCSE-IGCSE-O level Information-Revision Notes on CHEMISTRY, Earth Science & Radioactivity
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Some general KS4 Science-GCSE-IGCSE-O level links
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Specific KS4 Science GCSE-IGCSE Chemistry Revision-research-information notes index
Elements, Compounds, Mixtures * http://www.docbrown.info/page01/ElCpdMix/EleCmdMix.htm * Lots of basic chemical ideas and information. Explaining atoms, elements, compounds and mixtures. Separation methods and physical and chemical changes and how to write chemical equations and work out formula. (keyword-phrase index at top of page)
Uses of Chemicals - 220+ examples briefly described Lots of examples of chemicals in alphabetical order
Types of Chemical Reactions * http://www.docbrown.info/page01/ReactionTypes/ReactionTypes.htm * 40 different reactions-processes are described, email me if one is missing.
Qualitative Analysis - Chemical Identification Tests * http://www.docbrown.info/page13/ChemicalTests/ChemicalTests.htm * descriptions of tests for gases, ions and organic functional groups and labelled diagrams of hazard warning symbols. Email me if you think one is missing. * Methods of preparing and collecting gases
Acids, Bases, pH, Neutralisation and Salts * http://www.docbrown.info/page03/AcidsBasesSalts.htm * Includes theory and word & symbol equations and some topics are extended, and extra sections added in the Extra Aqueous Chemistry notes below. * Word and symbol equation exercise on the reactions of acids
Water and Extra Aqueous Chemistry Notes * http://www.docbrown.info/page01/AqueousChem/AqueousChem.htm * Water treatment, hard and soft water, colloids, solubility, acid-base theory, salt preparations. See also the Acids, Bases, pH, Neutralisation and salts notes above.
The Periodic Table * http://www.docbrown.info/page03/3_34ptable.htm * Explanation and overview of Groups, Periods, Series etc. with links to more detailed notes on the Group 7 Halogens, Group 1 Alkali Metals, Transition Metals. * Compiled tables of element data * A basic introductory Q on the Periodic Table and a Periodic Table history Q and a detailed Periodic Table Q, all with answers. Alphabetical Element name list with symbol and atomic number (Z)
Group 1 The Alkali Metals * http://www.docbrown.info/page03/Alkali_Metals.htm * Element data, physical and chemical properties of the metals, reactions with water, oxygen and chlorine, compound formulae, uses of metals and compounds.
Group 7 The Halogens * http://www.docbrown.info/page03/The_Halogens.htm * Data, properties and chemistry of elements and compounds, electrolysis of aqueous sodium chloride/brine and the uses of the products - chlorine, hydrogen and sodium hydroxide. Alphabetical keyword-phrase list at top of page.
Ammonia synthesis and uses, reversible reactions * http://www.docbrown.info/page04/4_74revNH3.htm * - including reversible reactions, equilibrium theory, fertiliser salts preparation, problems with over-use or fertilisers.
The Reactivity Series of Metals, Corrosion and Redox reactions * http://www.docbrown.info/page03/Reactivity.htm * The reactions of metals with oxygen, water and acids, displacement reactions, rusting of iron and preventing its corrosion, plus a detailed introduction to oxidation-reduction (redox) reactions, simple cells etc. * A detailed structured Q on metal reactivity and corrosion with answers.
The Mining of Minerals and the Extraction of Metals * http://www.docbrown.info/page04/Mextract.htm * The extraction of iron, aluminium, copper, zinc, sodium etc. and method details and equations and method related to reactivity of metal and environmental issues.
Extra Industrial Chemistry * http://www.docbrown.info/page01/ExIndChem/ExIndChem.htm * Limestone, enzymes, sulphuric acid, uses of metals - steels, aluminium and titanium, chemical economics etc.
Introduction to 'Formulation Chemistry' * http://www.docbrown.info/page01/ExIndChem/FormulationChemistry.htm * e.g. cosmetics, shampoos, paints, pesticides, adhesives etc
Extra Electrochemistry * http://www.docbrown.info/page01/ExIndChem/ExtraElectrochem.htm * An introduction to electrolysis, industrial electrolysis process links summary, experimental methods for electrolysis, simple cells/batteries, fuel cells etc.
Rates of Reactions * http://www.docbrown.info/page03/3_31rates.htm * The factors affecting reaction rates, experimental methods for obtaining data, energy change-reaction profiles and activation energies.
Energy changes-transfers in Chemical Reactions * http://www.docbrown.info/page03/3_51energy.htm * Exothermic and endothermic energy changes, bond energy calculations, simple calorimetry and energy released by fuels and its measurement and calculation.
States of Matter - particle theory - gas, liquid & solid * http://www.docbrown.info/page03/3_52states.htm * Notes and graphics on states, state changes, using the particle model to explain their properties.
Radioactivity * http://www.docbrown.info/page03/3_54radio.htm * The structure of atoms linked to the properties and uses of alpha, beta and gamma radiation, radioisotope dating, half-life and explanation of fission/fusion nuclear reactions etc.
Crude Oil and its useful products * http://www.docbrown.info/page04/OilProducts.htm * The hydrocarbons from oil and use as fuels, plastics, fossil fuels, environmental problems etc. and the extra organic notes on alkane & alkene homologous series 'families', alcohols like ethanol, other organic molecule families e.g. carboxylic acids, esters, polymers, Natural molecules - carbohydrates, sugars, amino acids, proteins and cooking, natural fats & oils, Vitamin C, Drugs-analgesics, Food Additives and CFC's, Ozone layer and free radicals. Use sub-index and keyword list at top of page. See also Alternative and Fossil Fuel Survey, Global warming
Earth Science Notes * http://www.docbrown.info/page21/GeoChangesANS.htm - based a series of 'cue' questions on atmospheric evolution, carbon cycle, igneous-metamorphic-sedimentary rock formation and properties, plate tectonics and rock cycle etc.
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