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Cambridge IGCSE Chemistry (0620)

1. States of matter

1.1 Solids, liquids and gases

2. Atoms, elements and compounds

2.1 Elements, compounds and mixtures

2.2 Atomic structure and the Periodic Table

2.4 Ions and ionic bonds

2.5 Simple molecules and covalent bonds

2.6 Giant covalent structures

2.7 Metallic bonding

3. Stoichiometry

3.2 Relative masses of atoms and molecules

3.3 The mole and the Avogadro constant

4. Electrochemistry

4.1 Electrolysis

4.2 Hydrogen–oxygen fuel cells

5. Chemical energetics

5.1 Exothermic and endothermic reactions

6. Chemical reactions

6.1 Physical and chemical changes

6.2 Rate of reaction

6.3 Reversible reactions and equilibrium

6.4.1—Roman numeral to indicate the

6.4.2—Redox reactions as involving

6.4.3—Oxidation as gain of oxygen and

6.4.4—Redox reactions as reactions involving

6.4.5—Oxidation and reduction in redox

6.4.6—Oxidation in terms of: (a) loss of

6.4.7—Reduction in terms of: (a) gain of

6.4.8—Redox reactions as reactions involving

6.4.9—Redox using oxidation numbers: (a)

6.4.10—Redox reactions by the colour changes

6.4.11—An oxidising agent as a substance that

6.4.12—Reducing agent as a substance that

6.4.13—Oxidising agents and reducing agents

7. Acids, bases and salts

7.1 The characteristic properties of acids and bases

7.3 Preparation of salts

8. The Periodic Table

8.1 Arrangement of elements

8.2 Group I properties

8.3 Group VII properties

8.4 Transition elements

8.5 Noble gases

9.1 Properties of metals

9.2 Uses of metals

9.3 Alloys and their properties

9.4 Reactivity series

9.5 Corrosion of metals

9.6 Extraction of metals

10. Chemistry of the environment

10.2 Fertilisers

10.3 Air quality and climate

11. Organic chemistry

11.1 Formulae, functional groups and terminology

11.2 Naming organic compounds

11.7 Carboxylic acids

12. Experimental techniques and chemical analysis

12.1 Experimental design

12.2 Acid–base titrations

12.3 Chromatography

12.4 Separation and purification

12.5 Identification of ions and gases

13. Assessed scientific skills

13.1 Handling information and problem-solving

13.2 Experimental skills and investigations

13.3 Mathematical and data-presentation skills

Question Bank/IGCSE CAIE Chemistry/6. Chemical reactions/6.4 Redox/6.4.3—Oxidation as gain of oxygen and

CAIE IGCSE Chemistry Oxygen Gain and Loss in Redox

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