This revision pack includes clear, concise notes for all the content covered in C4 (Stoichiometry) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). Practice questions are also included. The C4 topic includes: Symbols for elements and formulae for compounds Determining the formulae of compounds Constructing and using word and symbol equations (e.g. balancing, state symbols etc.) Relative atomic mass and relative molecular mass The mole: including using the molar gas volume, calculating reacting masses, volumes and concentrations

This revision pack includes clear, concise notes for all the content covered in C11 (Air and water) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C11 topic includes: Water: describing chemical tests for water, and the process of the treatment of water supply An understanding of the composition of clean air, and the common pollutants in air The adverse effects of common air pollutants, and their sources Approaches to reducing emissions of sulfur dioxide (including low sulfur petrol and flue gas desulfurisation) How a catalytic converter removes NO and CO from exhaust emissions Rusting: conditions required for rusting, barrier methods of rust protection, sacrificial protection, and galvanising The formation of carbon dioxide Carbon dioxide and methane as greenhouse gases, and how this may contribute to climate change The need for nitrogen-, phosphorus- and potassium-containing fertilisers Displacement of ammonia from its salts The Haber process (for the manufacture of ammonia)

This revision pack includes clear, concise notes for all the content covered in C10 (Metals) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C10 topic includes: An understanding of the general physical properties of metals Metallic bonding, and how this can help to explain the electrical conductivity and malleability of metals Describing alloys, and understanding the difference in properties between alloys and pure metals Understanding the different types of steel (alloys of iron) The order of the reactivity series, and how this can be used to describe reactions of different metals with (i) water or steam, (ii) dilute hydrochloric acid, and (iii) the reduction of their oxides with carbon Reactivity series, illustrated by the reactions of metals with (i) aqueous ions of other metals, and (ii) the oxides of other metals The use of carbon in the extraction of certain metals from their ores, including a detailed understanding of the reactions in the extraction of iron from haematite in the blast furnace Understanding the extraction of aluminium from the ore bauxite using electrolysis Understanding metal ores as a finite resource and the need to recycle metals Aluminium: uses of aluminium, and the apparent unreactivity of aluminium The uses of mild steel and stainless steel The uses of zinc for galvanising steel and for making brass

This revision pack includes clear, concise notes for all the content covered in C7 (Chemical reactions) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C7 topic includes: Practical methods for investigating rate of reaction, including use of suitable apparatus Effects of concentration, particle size, catalysts and temperature on rate of reactions Danger of explosive combustion with fine powders (e.g. flour mills) and gases (e.g. methane in mines)

This revision pack includes clear, concise notes for all the content covered in C8 (Acids, bases and salts) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C8 topic includes: Characteristic properties of acids and bases: including pH, using indicators, key reactions, controlling acidity in soil, acids and bases in terms of proton transfer Types of oxides: including acidic, basic, neutral and amphoteric Understanding how and when to use different methods for the preparation, separation and purification of salts Identification of ions and gases, including: tests for different aqueous cations, flame tests, anions and gases

This revision pack includes clear, concise notes for all the content covered in C12 (Sulfur) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C12 topic includes: The use of sulfur in the manufacture of sulfuric acid The stages of the Contact process, including the essential conditions and reactions

This revision pack includes clear, concise notes for all the content covered in C5 (Electricity and chemistry) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C5 topic includes: Understanding of electrolysis, and its key terms including: inert electrodes, electrolytes, anode, cathode Understanding the reactions that occur at each of the electrodes, and determining what will be produced depending on the electrolyte and electrodes used Specific examples of electrolysis, including: molten lead (II) bromide, conc. aqueous sodium chloride, dilute sulfuric acid Electroplating with copper The manufacture of aluminium from pure aluminium oxide in molten cryolite Chlorine, hydrogen and sodium hydroxide manufacture from conc. aqueous NaCl

This revision pack includes clear, concise notes for all the content covered in C2 (Experimental techniques) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C2 topic includes: Measurement Criteria of purity: including paper chromatography, the importance of purity, the properties of mixtures Methods of purification: including using suitable solvents, filtration, crystallisation, distillation, fractional distillation and paper chromatography

This revision pack includes clear, concise notes, with revision questions, for all the content covered in C6 (Energy changes in chemical reactions) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C6 topic includes: Understanding of exothermic and endothermic reactions Bond breaking and bond forming in terms of energy transfer Drawing and interpreting labeled energy level diagrams

This revision pack includes clear, concise notes for all the content covered in C9 (The periodic table) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C9 topic includes: Describing and understanding key periodic trends Group 1 (alkali) metals: properties, trends, reaction with water Group 7 (halogens): concept of diatomic molecules, trends, displacement reactions with other halide ions Transition elements Group 8 / Group 0 (noble gases): describing and explaining properties in terms of electronic structure, uses of noble gases

This revision pack includes clear, concise notes for all the content covered in B1 (Characteristics of living organisms) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The B1 topic includes: descriptions of the characteristics of all living organisms.

This revision pack includes clear, concise notes for all the content covered in C13 (Carbonates) according to the CIE IGCSE co-ordinated science new specification (new for the 2022 examinations). The C13 topic includes: The manufacture of lime (calcium oxide) from limestone (calcium carbonate) The use of limestone in treating acidic soil and neutralising acidic industrial waste products The thermal decomposition of calcium carbonate (limestone)