Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.4.1 - Enthalpy change. Practical 2: Measurement of an enthalpy change. Specification Point 3.1.4.2 - Calorimetry. Specification Point 3.1.4.3 - Applications of Hess’s law. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.6.1 - Chemical equilibria and Le Chatelier’s principle. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.2.5 - Balanced equations and associated calculations. Complete set of Chapter 1 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.3.1 - Ionic bonding. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.29 - Calculate reacting masses using experimental data and chemical equations. Specification Point 1.30 - Calculate percentage yield. Specification Point 1.31 - Understand how the formulae of simple compounds can be obtained experimentally, including metal oxides, water and salts containing water of crystallisation. Specification Point 1.32 - Know what is meant by the terms empirical formula and molecular formula. Specification Point 1.33 - Calculate empirical and molecular formulae from experimental data. Complete set of Chapter 2 Lessons are available.

A useful resource for students to practice their knowledge and examination technique for future external assessments. This is for the following paper: 4CH1 - 2C This mock is based on our 2023 Predicted Papers. These questions are completely original and have been designed from scratch. There has been no reuse of previous exam questions. Our mock paper follows the format of the true Edexcel IGCSE Chemistry 2C paper closely. It is also the exact duration and mark-count, with questions of increasing difficulty. A mark scheme is also attached. The paper covers the following specification points: • Topic 1e - Chemical formulae, equations and calculations (1.26 – 1.35C) • Topic 1i - Electrolysis (1.55C – 1.60C) • Topic 2e - Extraction and uses of metals (2.22C – 2.27C) • Topic 2f - Acids, alkalis and titrations (2.28 – 2.33C) • Topic 2h - Chemical tests (2.44 – 2.50) • Topic 3a - Energetics (including practical 3.8) (3.1 – 3.8) • Topic 3b - Rates of reaction (3.14C) • Topic 4e - Alcohols (4.29C - 4.33C) • Topic 4f - Carboxylic acids (4.34C – 4.37C) Disclaimer: This document was created by department heads with many years of experience teaching the Pearson Edexcel IGCSE Chemistry course. We cannot however guarantee that it is an accurate representation of upcoming examinations and students should not treat it as such. Please use this as an aid, alongside other methods of revision.

A useful resource for students to practice their knowledge and examination technique for future external assessments. This is for the following paper: 4CH1 - 2C This mock is based on our 2022 Predicted Papers. These questions are completely original and have been designed from scratch. There has been no reuse of previous exam questions. Our mock paper follows the format of the true Edexcel IGCSE Chemistry 2C paper closely. It is also the exact duration and mark-count, with questions of increasing difficulty. A mark scheme is also attached. The paper covers the following specification points: • Topic 1e - Chemical formulae, equations and calculations (1.25 – 1.36) • Topic 1i - Electrolysis (1.55C – 1.60C) • Topic 2b - Group 7 (2.5 – 2.8C) • Topic 2c - Gases in the atmosphere (2.9 – 2.14) • Topic 2e - Extraction and uses of metals (2.22C – 2.27C) • Topic 2f - Acids, alkalis and titrations (2.28 – 2.33C) • Topic 2h - Chemical tests (2.44 – 2.50) • Topic 3a - Energetics (including practical 3.8) (3.1 – 3.8) • Topic 4f - Carboxylic acids (4.34C – 4.37C) • Topic 4h - Synthetic polymers (4.44 – 4.50C) Disclaimer: This document was created by department heads with many years of experience teaching the Pearson Edexcel IGCSE Chemistry course. We cannot however guarantee that it is an accurate representation of upcoming examinations and students should not treat it as such. Please use this as an aid, alongside other methods of revision.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.9 - Know the approximate percentages by volume of the four most abundant gases in dry air. Specification Point 2.10 - Understand how to determine the percentage by volume of oxygen in air using experiments involving the reactions of metals and non-metals with air. Specification Point 2.11 - Describe the combustion of elements in oxygen, including magnesium, hydrogen and sulphur. Specification Point 2.12 - Describe the formation of carbon dioxide from the thermal decomposition of metal carbonates, including copper (II) carbonate. Specification Point 2.13 - Know that carbon dioxide is a greenhouse gas and that increasing amounts in the atmosphere may contribute to climate change. Specification Point 2.14 - Practical: determine the approximate percentage by volume of oxygen in air using a metal or a non-metal. Complete set of Chapter 4 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.15 - Understand how metals can be arranged in a reactivity series based on their reactions with water or dilute acid. Specification Point 2.16 - Understand how metals can be arranged in a reactivity series based on displacement reactions. Specification Point 2.17 - Know the order of reactivity of these metals: potassium, sodium, lithium, calcium, magnesium, aluminium, zinc, iron, copper, silver, and gold. Specification Point 2.18 - Know the conditions under which iron rusts. Specification Point 2.19 - Understand how the rusting of iron may be prevented by barrier methods, galvanising and sacrificial protection. Specification Point 2.20 - Understand the terms oxidation, reduction, redox, oxidising agent and reducing agent in terms of the gain or loss of oxygen and the loss or gain of electrons. Specification Point 2.21 - Practical: investigate reactions between dilute hydrochloric and sulfuric acids and metals (e.g. magnesium, zinc and iron). Complete set of Chapter 4 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.28 - Describe the use of litmus, phenolphthalein and methyl orange to distinguish between acidic and alkaline solutions. Specification Point 2.29 - Understand how the pH scale can be used to classify solutions as strongly acidic, weakly acidic, neutral, weakly alkaline and strongly alkaline. Specification Point 2.30 - Describe the use of universal indicator to measure the approximate pH value of an aqueous solution. Specification Point 2.31 - Know that acids in aqueous solution are a source of hydrogen ions and alkalis in a aqueous solution are a source of hydroxide ions. Specification Point 2.32 - Know that alkalis can neutralise acids. Complete set of Chapter 5 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.40C - Describe an experiment to prepare a pure, dry sample of a soluble salt, starting from an acid and alkali. Specification Point 2.41C - Describe an experiment to prepare a pure, dry sample of an insoluble salt, starting from 2 soluble reactants. Specification Point 2.43C - Practical: prepare a sample of pure, dry lead (II) sulphate. Complete set of Chapter 5 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 4.19 - Know the general formula for alkanes. Specification Point 4.20 - Explain why alkanes are classified as saturated hydrocarbons. Specification Point 4.21 - Understand how to draw the structural and displayed formulae for alkanes with up to five carbon atoms in the molecule, and to name the unbranched-chain isomers. Specification Point 4.22 - Describe the reactions of alkanes with halogens in the presence of ultraviolet radiation, limited to mono-substitution. Specification Point 4.23 - Know that alkenes contain a particular functional group (C=C). Specification Point 4.24 - Know the general formula for alkenes. Specification Point 4.25 - Explain why alkenes are classified as unsaturated hydrocarbons. Specification Point 4.26 - Understand how to draw the structural and displayed formulae for alkenes with up to four carbon atoms in the molecule, and name the unbranched-chain isomers. Specification Point 4.27 -Describe the reactions of alkenes with bromine to produce dibromoalkanes. Specification Point 4.28 - Describe how bromine water can be used to distinguish between an alkane and an alkene. Complete set of Chapter 7 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.1 - Understand how the similarities in the reactions of the group 1 elements with water provide evidence for their recognition as a family of elements. Specification Point 2.2 - Understand how the differences between the reactions of the alkali metals with air and water provide evidence for the trend in reactivity in group 1. Specification Point 2.3 - Use knowledge of trends in group 1 to predict the properties of other alkali metals. Specification Point 2.4C - Explain the trend in reactivity in group 1 in terms of electronic configurations. Complete set of Chapter 4 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.37 - Understand how ions are formed by electron loss or gain. Specification Point 1.38 - Know the charges of several atomic and molecular ions. Specification Point 1.39 - Write formulae for compounds formed between the ions listed in 1.38. Specification Point 1.40 - Draw dot-and-cross diagrams to show the formation of ionic compounds by electron transfer, limited to combinations of elements from groups 1, 2, 3, 5, 6 and 7. Specification Point 1.41 - Understand ionic bonding in terms of electrostatic attractions. Specification Point 1.42 - Understand why compounds with giant ionic lattices have high melting and boiling points. Specification Point 1.43 - Know that ionic compounds do not conduct electricity when solid, but do conduct electricity when molten and in aqueous solution. Complete set of Chapter 3 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.52C - Know how to represent a metallic lattice by a 2-D diagram. Specification Point 1.53C - Understand metallic bonding in terms of electrostatic attractions. Specification Point 1.54C - Explain typical physical properties of metals, including electrical conductivity and malleability. Complete set of Chapter 3 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.55C - Understand why covalent compounds do not conduct electricity. Specification Point 1.56C - Understand why ionic compounds conduct electricity only when molten or in aqueous solution. Specification Point 1.57C - Know that anion and cation are terms used to refer to negative and positive ions respectively. Specification Point 1.58C - Describe experiments to investigate electrolysis, using inert electrodes, of molten compounds and aqueous solutions and to predict the products. Specification Point 1.59C - Write ionic half-equations representing the reactions at the electrodes during electrolysis and understand why these reactions are classified as oxidation or reduction. Specification Point 1.60C - Practical: investigate the electrolysis of aqueous solutions. Complete set of Chapter 3 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.34 - Know the general rules for predicting the solubility of ionic compounds in water. Specification Point 2.35 - Understand acids and bases in terms of proton transfer. Specification Point 2.36 - Understand that an acid is a proton donor and a base is a proton acceptor. Specification Point 2.37 - Describe the reactions of hydrochloric acid, sulfuric acid and nitric acid with metals, bases and metal carbonates to form salts. Specification Point 2.38 - Know that metal oxides, metal hydroxides and ammonia can act as bases, and that alkalis are bases that are soluble in water. Specification Point 2.39 - Describe an experiment to prepare a pure, dry sample of a soluble salt, starting from an insoluble reactant. Specification Point 2.42 - Practical: prepare a sample of pure, dry hydrated copper (II) sulphate crystals starting from copper (II) oxide. Complete set of Chapter 5 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.44 - Describe tests for these gases: hydrogen, oxygen, carbon dioxide, ammonia and chlorine. Specification Point 2.45 - Describe how to carry out a flame test. Specification Point 2.46 - Know the colours formed in flame tests for the following cations: lithium, sodium, potassium, calcium and copper. Specification Point 2.47 - Describe tests for these cations: ammonium using sodium hydroxide solution and identifying the gas evolved. Copper, iron (II) and iron (III) using sodium hydroxide solution. Specification Point 2.48 - Describe tests for these anions: chloride, bromide and iodide using acidified silver nitrate solution. Sulphates using acidified barium chloride solution and carbonates using hydrochloric acid and identifying the gas evolved. Specification Point 2.49 - Describe a test for the presence of water using anhydrous copper (II) sulphate. Specification Point 2.50 - Describe a physical test to show whether a sample of water is pure. Complete set of Chapter 5 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 3.9 - Describe experiments to investigate the effects of changes in surface area of a solid, concentration of a solution, temperature and the use of a catalyst on the rate of a reaction. Specification Point 3.10 - Describe the effects of changes in surface area of a solid, concentration of a solution, pressure of a gas, temperature and the use of a catalyst on the rate of a reaction. Specification Point 3.11 - Explain the effects of changes in surface area of a solid, concentration of a solution, pressure of a gas and temperature on the rate of a reaction in terms of particle collision theory. Specification Point 3.12 - Know that a catalyst is a substance that increases the rate of a reaction, but is chemically unchanged at the end of the reaction. Specification Point 3.13 - Know that a catalyst works by providing an alternative pathway with lower activation energy. Specification Point 3.15 - Practical: investigate the effect of changing the surface area of marble chips and of changing the concentration of hydrochloric acid on the rate of reaction between marble chips and dilute hydrochloric acid. Specification Point 3.16 - Practical: investigate the effect of different solids on the catalytic decomposition of hydrogen peroxide solution. Complete set of Chapter 6 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 4.7 - Know that crude oil is a mixture of hydrocarbons. Specification Point 4.8 - Describe how the industrial process of fractional distillation separates crude oil into fractions. Specification Point 4.9 - Know the names and uses of the main fractions obtained from crude oil. Specification Point 4.10 - Know the trend in colour, boiling point and viscosity of the main fractions. Complete set of Chapter 7 Lessons are available.