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IGCSE Chemistry
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- Syllabus 2-up
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- Lesson Plans — one page per topic 2-up
- Class Mark Book
1. States of matter 12 files
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2. Atoms, elements and compounds 27 files
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- 2.1 Elements, compounds and mixtures Past-paper walk-through
- 2.2 Atomic structure and the Periodic Table Past-paper walk-through
- 2.3 Isotopes Past-paper walk-through
- 2.4 Ions and ionic bonds Past-paper walk-through
- 2.5 Simple molecules and covalent bonds Past-paper walk-through
- 2.6 Giant covalent structures Past-paper walk-through
- 2.7 Metallic bonding Past-paper walk-through
Vocabulary
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- 2.1 Elements, compounds and mixtures 2-upAnswers2-up
- 2.2 Atomic structure and the Periodic Table 2-upAnswers2-up
- 2.3 Isotopes 2-upAnswers2-up
- 2.4 Ions and ionic bonds 2-upAnswers2-up
- 2.5 Simple molecules and covalent bonds 2-upAnswers2-up
- 2.6 Giant covalent structures 2-upAnswers2-up
- 2.7 Metallic bonding 2-upAnswers2-up
Unit Tests
3. Stoichiometry 14 files
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4. Electrochemistry 12 files
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Unit Tests
5. Chemical energetics 9 files
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Unit Tests
6. Chemical reactions 18 files
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Topic Quizzes
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Exercise sheets
Past Paper Questions
Unit Tests
7. Acids, bases and salts 15 files
Handouts
Presentation slides
Exercise walk-through slides
Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
8. The Periodic Table 21 files
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Vocabulary
Topic Quizzes
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Unit Tests
9. Metals 24 files
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Past Paper Questions
10. Chemistry of the environment 15 files
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Unit Tests
11. Organic chemistry 29 files
Handouts
Presentation slides
Exercise walk-through slides
- 11.1 Formulae, functional groups and terminology Past-paper walk-through
- 11.2 Naming organic compounds
- 11.3 Fuels Past-paper walk-through
- 11.4 Alkanes Past-paper walk-through
- 11.5 Alkenes Past-paper walk-through
- 11.6 Alcohols Past-paper walk-through
- 11.7 Carboxylic acids Past-paper walk-through
- 11.8 Polymers Past-paper walk-through
Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
12. Experimental techniques and chemical analysis 21 files
Presentation slides
Exercise walk-through slides
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
2025 94 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry November 2025 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry November 2025 Confidential Instructions 53.pdf 2-up
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry June 2025 Confidential Instructions 51.pdf 2-up
- 0620 Chemistry June 2025 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry June 2025 Confidential Instructions 53.pdf 2-up
March session
2024 94 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry November 2024 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry November 2024 Confidential Instructions 53.pdf 2-up
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry June 2024 Confidential Instructions 51.pdf 2-up
- 0620 Chemistry June 2024 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry June 2024 Confidential Instructions 53.pdf 2-up
March session
2023 94 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry November 2023 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry November 2023 Confidential Instructions 53.pdf 2-up
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry June 2023 Confidential Instructions 51.pdf 2-up
- 0620 Chemistry June 2023 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry June 2023 Confidential Instructions 53.pdf 2-up
March session
2022 97 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry November 2022 Confidential Instructions 51.pdf 2-up
- 0620 Chemistry November 2022 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry November 2022 Confidential Instructions 53.pdf 2-up
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry June 2022 Confidential Instructions 51.pdf 2-up
- 0620 Chemistry June 2022 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry June 2022 Confidential Instructions 53.pdf 2-up
March session
2021 97 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry November 2021 Confidential Instructions 51.pdf 2-up
- 0620 Chemistry November 2021 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry November 2021 Confidential Instructions 53.pdf 2-up
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds 2-up
- Examiner report 2-up
- 0620 Chemistry June 2021 Confidential Instructions 51.pdf 2-up
- 0620 Chemistry June 2021 Confidential Instructions 52.pdf 2-up
- 0620 Chemistry June 2021 Confidential Instructions 53.pdf 2-up
March session
- IGCSE Chemistry — Question index 2-up
- 1.1 Solids, liquids and gases 2-upAnswers2-up
- 1.2 Diffusion 2-upAnswers2-up
- 2.1 Elements, compounds and mixtures 2-upAnswers2-up
- 2.2 Atomic structure and the Periodic Table 2-upAnswers2-up
- 2.3 Isotopes 2-upAnswers2-up
- 2.4 Ions and ionic bonds 2-upAnswers2-up
- 2.5 Simple molecules and covalent bonds 2-upAnswers2-up
- 2.6 Giant covalent structures 2-upAnswers2-up
- 2.7 Metallic bonding 2-upAnswers2-up
- 3.1 Formulae 2-upAnswers2-up
- 3.3 The mole and the Avogadro constant 2-upAnswers2-up
- 4.1 Electrolysis 2-upAnswers2-up
- 4.2 Hydrogen–oxygen fuel cells 2-upAnswers2-up
- 5.1 Exothermic and endothermic reactions 2-upAnswers2-up
- 6.1 Physical and chemical changes 2-upAnswers2-up
- 6.2 Rate of reaction 2-upAnswers2-up
- 6.3 Reversible reactions and equilibrium 2-upAnswers2-up
- 6.4 Redox 2-upAnswers2-up
- 7.1 The characteristic properties of acids and bases 2-upAnswers2-up
- 7.2 Oxides 2-upAnswers2-up
- 7.3 Preparation of salts 2-upAnswers2-up
- 8.1 Arrangement of elements 2-upAnswers2-up
- 8.2 Group I properties 2-upAnswers2-up
- 8.3 Group VII properties 2-upAnswers2-up
- 8.4 Transition elements 2-upAnswers2-up
- 8.5 Noble gases 2-upAnswers2-up
- 9.1 Properties of metals 2-upAnswers2-up
- 9.2 Uses of metals 2-upAnswers2-up
- 9.3 Alloys and their properties 2-upAnswers2-up
- 9.4 Reactivity series 2-upAnswers2-up
- 9.5 Corrosion of metals 2-upAnswers2-up
- 9.6 Extraction of metals 2-upAnswers2-up
- 10.1 Water 2-upAnswers2-up
- 10.2 Fertilisers 2-upAnswers2-up
- 10.3 Air quality and climate 2-upAnswers2-up
- 11.1 Formulae, functional groups and terminology 2-upAnswers2-up
- 11.3 Fuels 2-upAnswers2-up
- 11.4 Alkanes 2-upAnswers2-up
- 11.5 Alkenes 2-upAnswers2-up
- 11.6 Alcohols 2-upAnswers2-up
- 11.7 Carboxylic acids 2-upAnswers2-up
- 11.8 Polymers 2-upAnswers2-up
- 12.1 Experimental design 2-upAnswers2-up
- 12.2 Acid–base titrations 2-upAnswers2-up
- 12.3 Chromatography 2-upAnswers2-up
- 12.4 Separation and purification 2-upAnswers2-up
- 12.5 Identification of ions and gases 2-upAnswers2-up
Topic quizzes
- 1. States of matter 2-up
- 2. Atoms, elements and compounds 2-up
- 3. Stoichiometry 2-up
- 4. Electrochemistry 2-up
- 5. Chemical energetics 2-up
- 6. Chemical reactions 2-up
- 7. Acids, bases and salts 2-up
- 8. The Periodic Table 2-up
- 9. Metals 2-up
- 10. Chemistry of the environment 2-up
- 11. Organic chemistry 2-up
- 12. Experimental techniques and chemical analysis 2-up
Starter quizzes
- 1. States of matter 2-upAnswers2-up
- 2. Atoms, elements and compounds 2-upAnswers2-up
- 3. Stoichiometry 2-upAnswers2-up
- 4. Electrochemistry 2-upAnswers2-up
- 5. Chemical energetics 2-upAnswers2-up
- 6. Chemical reactions 2-upAnswers2-up
- 7. Acids, bases and salts 2-upAnswers2-up
- 8. The Periodic Table 2-upAnswers2-up
- 9. Metals 2-upAnswers2-up
- 10. Chemistry of the environment 2-upAnswers2-up
- 11. Organic chemistry 2-upAnswers2-up
- 12. Experimental techniques and chemical analysis 2-upAnswers2-up
Unit tests
- 1. States of matter 2-upAnswers2-up
- 2. Atoms, elements and compounds 2-upAnswers2-up
- 3. Stoichiometry 2-upAnswers2-up
- 4. Electrochemistry 2-upAnswers2-up
- 5. Chemical energetics 2-upAnswers2-up
- 6. Chemical reactions 2-upAnswers2-up
- 7. Acids, bases and salts 2-upAnswers2-up
- 8. The Periodic Table 2-upAnswers2-up
- 9. Metals 2-upAnswers2-up
- 10. Chemistry of the environment 2-upAnswers2-up
- 11. Organic chemistry 2-upAnswers2-up
- 12. Experimental techniques and chemical analysis 2-upAnswers2-up
Mock papers
Course companion
Glossary
Topic handouts
- 1. States of matter 2-up
- 2. Atoms, elements and compounds 2-up
- 3. Stoichiometry 2-up
- 4. Electrochemistry 2-up
- 5. Chemical energetics 2-up
- 6. Chemical reactions 2-up
- 7. Acids, bases and salts 2-up
- 8. The Periodic Table 2-up
- 9. Metals 2-up
- 10. Chemistry of the environment 2-up
- 11. Organic chemistry 2-up
- 12. Experimental techniques and chemical analysis 2-up
- 1.1 Solids, liquids and gases 2-up
- 1.2 Diffusion 2-up
- 2.1 Elements, compounds and mixtures 2-up
- 2.2 Atomic structure and the Periodic Table 2-up
- 2.3 Isotopes 2-up
- 2.4 Ions and ionic bonds 2-up
- 2.5 Simple molecules and covalent bonds 2-up
- 2.6 Giant covalent structures 2-up
- 2.7 Metallic bonding 2-up
- 3.1 Formulae 2-up
- 3.2 Relative masses of atoms and molecules 2-up
- 3.3 The mole and the Avogadro constant 2-up
- 4.1 Electrolysis 2-up
- 4.2 Hydrogen–oxygen fuel cells 2-up
- 5.1 Exothermic and endothermic reactions 2-up
- 6.1 Physical and chemical changes 2-up
- 6.2 Rate of reaction 2-up
- 6.3 Reversible reactions and equilibrium 2-up
- 6.4 Redox 2-up
- 7.1 The characteristic properties of acids and bases 2-up
- 7.2 Oxides 2-up
- 7.3 Preparation of salts 2-up
- 8.1 Arrangement of elements 2-up
- 8.2 Group I properties 2-up
- 8.3 Group VII properties 2-up
- 8.4 Transition elements 2-up
- 8.5 Noble gases 2-up
- 9.1 Properties of metals 2-up
- 9.2 Uses of metals 2-up
- 9.3 Alloys and their properties 2-up
- 9.4 Reactivity series 2-up
- 9.5 Corrosion of metals 2-up
- 9.6 Extraction of metals 2-up
- 10.1 Water 2-up
- 10.2 Fertilisers 2-up
- 10.3 Air quality and climate 2-up
- 11.1 Formulae, functional groups and terminology 2-up
- 11.2 Naming organic compounds 2-up
- 11.3 Fuels 2-up
- 11.4 Alkanes 2-up
- 11.5 Alkenes 2-up
- 11.6 Alcohols 2-up
- 11.7 Carboxylic acids 2-up
- 11.8 Polymers 2-up
- 12.1 Experimental design 2-up
- 12.2 Acid–base titrations 2-up
- 12.3 Chromatography 2-up
- 12.4 Separation and purification 2-up
- 12.5 Identification of ions and gases 2-up
Lesson slides
- 1. States of matter
- 2. Atoms, elements and compounds
- 3. Stoichiometry
- 4. Electrochemistry
- 5. Chemical energetics
- 6. Chemical reactions
- 7. Acids, bases and salts
- 8. The Periodic Table
- 9. Metals
- 10. Chemistry of the environment
- 11. Organic chemistry
- 12. Experimental techniques and chemical analysis
Lesson slides
- 1.1 Solids, liquids and gases Past-paper walk-through
- 1.2 Diffusion Past-paper walk-through
- 2.1 Elements, compounds and mixtures Past-paper walk-through
- 2.2 Atomic structure and the Periodic Table Past-paper walk-through
- 2.3 Isotopes Past-paper walk-through
- 2.4 Ions and ionic bonds Past-paper walk-through
- 2.5 Simple molecules and covalent bonds Past-paper walk-through
- 2.6 Giant covalent structures Past-paper walk-through
- 2.7 Metallic bonding Past-paper walk-through
- 3.1 Formulae Past-paper walk-through
- 3.2 Relative masses of atoms and molecules
- 3.3 The mole and the Avogadro constant Past-paper walk-through
- 4.1 Electrolysis Past-paper walk-through
- 4.2 Hydrogen–oxygen fuel cells Past-paper walk-through
- 5.1 Exothermic and endothermic reactions Past-paper walk-through
- 6.1 Physical and chemical changes Past-paper walk-through
- 6.2 Rate of reaction Past-paper walk-through
- 6.3 Reversible reactions and equilibrium Past-paper walk-through
- 6.4 Redox Past-paper walk-through
- 7.1 The characteristic properties of acids and bases Past-paper walk-through
- 7.2 Oxides Past-paper walk-through
- 7.3 Preparation of salts Past-paper walk-through
- 8.1 Arrangement of elements Past-paper walk-through
- 8.2 Group I properties Past-paper walk-through
- 8.3 Group VII properties Past-paper walk-through
- 8.4 Transition elements Past-paper walk-through
- 8.5 Noble gases Past-paper walk-through
- 9.1 Properties of metals Past-paper walk-through
- 9.2 Uses of metals Past-paper walk-through
- 9.3 Alloys and their properties Past-paper walk-through
- 9.4 Reactivity series Past-paper walk-through
- 9.5 Corrosion of metals Past-paper walk-through
- 9.6 Extraction of metals Past-paper walk-through
- 10.1 Water Past-paper walk-through
- 10.2 Fertilisers Past-paper walk-through
- 10.3 Air quality and climate Past-paper walk-through
- 11.1 Formulae, functional groups and terminology Past-paper walk-through
- 11.2 Naming organic compounds
- 11.3 Fuels Past-paper walk-through
- 11.4 Alkanes Past-paper walk-through
- 11.5 Alkenes Past-paper walk-through
- 11.6 Alcohols Past-paper walk-through
- 11.7 Carboxylic acids Past-paper walk-through
- 11.8 Polymers Past-paper walk-through
- 12.1 Experimental design Past-paper walk-through
- 12.2 Acid–base titrations Past-paper walk-through
- 12.3 Chromatography Past-paper walk-through
- 12.4 Separation and purification Past-paper walk-through
- 12.5 Identification of ions and gases Past-paper walk-through
Vocabulary lists
- 1. States of matter 2-up
- 2. Atoms, elements and compounds 2-up
- 3. Stoichiometry 2-up
- 4. Electrochemistry 2-up
- 5. Chemical energetics 2-up
- 6. Chemical reactions 2-up
- 7. Acids, bases and salts 2-up
- 8. The Periodic Table 2-up
- 9. Metals 2-up
- 10. Chemistry of the environment 2-up
- 11. Organic chemistry 2-up
- 12. Experimental techniques and chemical analysis 2-up
Flashcards
Weekly vocab tests
- Week 1 · Topic 1 · States of matter 2-upAnswer key
- Week 2 · Topics 1–2 · States of matter, Atoms, elements and compounds 2-upAnswer key
- Week 3 · Topics 2–7 · Atoms, elements and compounds, Acids, bases and salts 2-upAnswer key
- Week 4 · Topics 2–4 · Atoms, elements and compounds, Electrochemistry 2-upAnswer key
- Week 5 · Topics 2–3 · Atoms, elements and compounds, Stoichiometry 2-upAnswer key
- Week 6 · Topics 3–4 · Stoichiometry, Electrochemistry 2-upAnswer key
- Week 7 · Topics 4–10 · Electrochemistry, Chemical energetics, Chemistry of the environment 2-upAnswer key
- Week 8 · Topics 5–6 · Chemical energetics, Chemical reactions 2-upAnswer key
- Week 9 · Topics 6–7 · Chemical reactions, Acids, bases and salts 2-upAnswer key
- Week 10 · Topic 7 · Acids, bases and salts 2-upAnswer key
- Week 11 · Topics 7–8 · Acids, bases and salts, The Periodic Table 2-upAnswer key
- Week 12 · Topics 4–9 · Electrochemistry, The Periodic Table, Metals 2-upAnswer key
- Week 13 · Topics 4–10 · Electrochemistry, Metals, Chemistry of the environment 2-upAnswer key
- Week 14 · Topic 10 · Chemistry of the environment 2-upAnswer key
- Week 15 · Topics 10–11 · Chemistry of the environment, Organic chemistry 2-upAnswer key
- Week 16 · Topic 11 · Organic chemistry 2-upAnswer key
- Week 17 · Topics 11–12 · Organic chemistry, Experimental techniques and chemical analysis 2-upAnswer key
- Week 18 · Topics 7–12 · Acids, bases and salts, Organic chemistry, Experimental techniques and chemical analysis 2-upAnswer key
Weekly homework
- Week 1 2-up
- Week 3 2-up
- Week 6 2-up
- Week 7
- Week 8 2-up
- Week 9
- Week 10 2-up
- Week 11
- Week 12 2-up
- Week 14
- Week 15 2-up
- Week 16
- Week 17 2-up
- Week 19 2-up
- Week 21 2-up
- Week 22
- Week 23 2-up
- Week 24
- Week 27 2-up
- Week 28
Exercise sheets
- Complete pack — exercise sheets + past papers 2-up
- 1 States of matter — Part 1 2-upAnswer key
- 1 States of matter — Part 2 2-upAnswer key
- 2 Atoms, elements and compounds — Part 1 2-upAnswer key
- 2 Atoms, elements and compounds — Part 2 2-upAnswer key
- 3 Stoichiometry — Part 1 2-upAnswer key
- 3 Stoichiometry — Part 2 2-upAnswer key
- 4 Electrochemistry — Part 1 2-upAnswer key
- 4 Electrochemistry — Part 2 2-upAnswer key
- 5 Chemical energetics — Part 1 2-upAnswer key
- 5 Chemical energetics — Part 2 2-upAnswer key
- 6 Chemical reactions — Part 1 2-upAnswer key
- 6 Chemical reactions — Part 2 2-upAnswer key
- 7 Acids, bases and salts — Part 1 2-upAnswer key
- 7 Acids, bases and salts — Part 2 2-upAnswer key
- 8 The Periodic Table — Part 1 2-upAnswer key
- 8 The Periodic Table — Part 2 2-upAnswer key
- 9 Metals — Part 1 2-upAnswer key
- 9 Metals — Part 2 2-upAnswer key
- 10 Chemistry of the environment — Part 1 2-upAnswer key
- 10 Chemistry of the environment — Part 2 2-upAnswer key
- 11 Organic chemistry — Part 1 2-upAnswer key
- 11 Organic chemistry — Part 2 2-upAnswer key
- 12 Experimental techniques and chemical analysis — Part 1 2-upAnswer key
- 12 Experimental techniques and chemical analysis — Part 2 2-upAnswer key
Past papers
- 1.1 Solids, liquids and gases Answers
- 1.2 Diffusion Answers
- 2.1 Elements, compounds and mixtures Answers
- 2.2 Atomic structure and the Periodic Table Answers
- 2.3 Isotopes Answers
- 2.4 Ions and ionic bonds Answers
- 2.5 Simple molecules and covalent bonds Answers
- 2.6 Giant covalent structures Answers
- 2.7 Metallic bonding Answers
- 3.1 Formulae Answers
- 3.3 The mole and the Avogadro constant Answers
- 4.1 Electrolysis Answers
- 4.2 Hydrogen–oxygen fuel cells Answers
- 5.1 Exothermic and endothermic reactions Answers
- 6.1 Physical and chemical changes Answers
- 6.2 Rate of reaction Answers
- 6.3 Reversible reactions and equilibrium Answers
- 6.4 Redox Answers
- 7.1 The characteristic properties of acids and bases Answers
- 7.2 Oxides Answers
- 7.3 Preparation of salts Answers
- 8.1 Arrangement of elements Answers
- 8.2 Group I properties Answers
- 8.3 Group VII properties Answers
- 8.4 Transition elements Answers
- 8.5 Noble gases Answers
- 9.1 Properties of metals 2-upAnswers
- 9.2 Uses of metals Answers
- 9.3 Alloys and their properties Answers
- 9.4 Reactivity series Answers
- 9.5 Corrosion of metals Answers
- 9.6 Extraction of metals Answers
- 10.1 Water Answers
- 10.2 Fertilisers Answers
- 10.3 Air quality and climate Answers
- 11.1 Formulae, functional groups and terminology Answers
- 11.3 Fuels Answers
- 11.4 Alkanes Answers
- 11.5 Alkenes Answers
- 11.6 Alcohols Answers
- 11.7 Carboxylic acids Answers
- 11.8 Polymers Answers
- 12.1 Experimental design Answers
- 12.2 Acid–base titrations Answers
- 12.3 Chromatography 2-upAnswers
- 12.4 Separation and purification Answers
- 12.5 Identification of ions and gases Answers
Tips
Do the qualitative-analysis questions from several sessions in one go. The tests for ions and gases are a small fixed list that barely changes year to year, so meeting them together turns them from something to remember into something you know.
Mark your equations as a marker would: unbalanced is zero; missing state symbols where the scheme asks is zero; a full equation where an ionic one was wanted is zero. These are the cheapest marks in the subject and the ones most often given away.
Once the content is secure, work whole papers to time. Stoichiometry questions are long enough that running out of time is a real failure mode.