Powerpoint lecture 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 Lectures 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 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 1.8 - Understand how to classify a substance as an element, compound or mixture. Specification Point 1.9 - Understand that a pure substance has a fixed melting and boiling point, but that a mixture may melt or boil over a range of temperatures. Complete set of Chapter 1 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Chemistry Lecture 6 - Paper Chromatography. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 1.11 - Understand how a chromatogram provides information about the composition of a mixture. Specification Point 1.12 - Understand how to use the calculation of Rf values to identify the components of a mixture. Specification Point 1.13 - Practical: understand how a chromatogram provides information about the composition of a mixture. Complete set of Chapter 1 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.10 Describe the following experimental techniques for the separation of mixtures: Simple distillation. Fractional distillation. Filtration. Crystallisation. Paper chromatography. Complete set of Chapter 1 Lessons are available.

Complete set of companion PDF worksheets for Edexcel IGCSE Chemistry (4CH1) Chapter 1 - Particles and Mixtures. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Six worksheets included: 1 - States of Matter 2 - Solutions and Solubility 3 - Calculating Solubility 4 - Elements, Compounds and Mixtures 5 - Methods of Separation 6 - Paper Chromatography

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.4 - Understand how the results of experiments involving the dilution of coloured solutions and diffusion of gases can be explained. Specification Point 1.5 - Know what is meant by the terms: solvent, solute, solution and saturated solution. Complete set of Chapter 1 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.5C - Know what is meant by the term solubility in the units grams per 100 grams of solvent. Specification Point 1.6C - Understand how to plot and interpret solubility curves. Specification Point 1.7C - Practical: investigate the solubility of a solid in water at a specific temperature. Complete set of Chapter 1 Lessons are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.1 - Understand the three states of matter in terms of the arrangement, movement & energy of the particles. Specification Point 1.2 - Understand the interconversions between the three states of matter in terms of: The names of the interconversions. How they are achieved. The changes in arrangement, movement & energy of the particles. Complete set of Chapter 1 Lessons are available.

Powerpoint lecture 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 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.2.2 - The mole and the Avogadro constant. Specification Point 3.1.2.3 - The ideal gas equation. Complete set of Chapter 1 Lectures are available.

Companion PDF worksheet for Edexcel IGCSE Chemistry Lecture 8 - The Periodic Table. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 1.18 - Understand how elements are arranged in the periodic table. Specification Point 1.19 - Understand how to deduce the electronic configurations of the first 20 elements from their positions in the periodic table. Specification Point 1.20 - Understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals. Specification Point 1.21 - Identify an element as a metal or a non-metal according to its position in the periodic table. Specification Point 1.22 - Understand how the electronic configuration of a main group element is related to its position in the periodic table. Specification Point 1.23 - Understand why elements in the same group of the periodic table have similar chemical properties. Specification Point 1.24 - Understand why the noble gases (Group 0) do not readily react. Complete set of Chapter 2 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.18 - Understand how elements are arranged in the periodic table. Specification Point 1.19 - Understand how to deduce the electronic configurations of the first 20 elements from their positions in the periodic table. Specification Point 1.20 - Understand how to use electrical conductivity and the acid-base character of oxides to classify elements as metals or non-metals. Specification Point 1.21 - Identify an element as a metal or a non-metal according to its position in the periodic table. Specification Point 1.22 - Understand how the electronic configuration of a main group element is related to its position in the periodic table. Specification Point 1.23 - Understand why elements in the same group of the periodic table have similar chemical properties. Specification Point 1.24 - Understand why the noble gases (Group 0) do not readily react. Complete set of Chapter 2 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Chemistry Lecture 9 - Formulae and Calculations. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 1.25 - Understand how to write word equations and balanced chemical equations (including state symbols). Specification Point 1.26 - Calculate relative formula masses (including relative molecular masses) from relative atomic masses. Specification Point 1.27 - Know that the mole is the unit for the amount of a substance. Specification Point 1.28 - Understand how to carry out calculations involving amount of substance, relative atomic mass and relative formula mass. Complete set of Chapter 2 Worksheets are available.

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 1.25 - Understand how to write word equations and balanced chemical equations (including state symbols). Specification Point 1.26 - Calculate relative formula masses (including relative molecular masses) from relative atomic masses. Specification Point 1.27 - Know that the mole is the unit for the amount of a substance. Specification Point 1.28 - Understand how to carry out calculations involving amount of substance, relative atomic mass and relative formula mass. Complete set of Chapter 2 Lessons are available.

Companion PDF worksheet for Edexcel IGCSE Chemistry Lecture 18 - Atmospheric Gases. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. 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 Worksheets are available.

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.

Companion PDF worksheet for Edexcel IGCSE Chemistry Lecture 21 - Acids and Alkalis. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. 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 Worksheets are available.

Companion PDF worksheet for Edexcel IGCSE Chemistry Lecture 23 - Acids, Bases and Salts. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. 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 Worksheets are available.