AQA GCSE Chemistry topics

• 1Atomic structure and the periodic table Practise all
  • 1.1Atoms, isotopes and electronic structure Practise all
    • 1.1.1Atoms, elements and compounds
    • 1.1.2Mixtures
    • 1.1.3Development of the model of the atom
    • 1.1.4Relative charges of subatomic particles
    • 1.1.5Size and mass of atoms
    • 1.1.6Relative atomic mass
    • 1.1.7Electronic structure
  • 1.2The periodic table Practise all
    • 1.2.1The periodic table
    • 1.2.2Development of the periodic table
    • 1.2.3Metals and non-metals
    • 1.2.4Group 0
    • 1.2.5Group 1
    • 1.2.6Group 7
  • 1.3Properties of transition metals Practise all
    • 1.3.1Comparison with Group 1 elements
    • 1.3.2Typical properties
• 2Bonding, structure and the properties of matter Practise all
  • 2.1Chemical bonds: ionic, covalent and metallic Practise all
    • 2.1.1Chemical bonds
    • 2.1.2Ionic bonding
    • 2.1.3Ionic compounds
    • 2.1.4Covalent bonding
    • 2.1.5Metallic bonding
  • 2.2Bonding, structure and properties Practise all
    • 2.2.1The three states of matter
    • 2.2.2State symbols
    • 2.2.3Properties of ionic compounds
    • 2.2.4Properties of small molecules
    • 2.2.5Polymers
    • 2.2.6Giant covalent structures
    • 2.2.7Properties of metals and alloys
    • 2.2.8Metals as conductors
  • 2.3Structure and bonding of carbon Practise all
    • 2.3.1Diamond
    • 2.3.2Graphite
    • 2.3.3Graphene and fullerenes
  • 2.4Nanoparticles Practise all
    • 2.4.1Sizes of particles and their properties
    • 2.4.2Uses of nanoparticles
• 3Quantitative chemistry Practise all
  • 3.1Conservation of mass and chemical measurements Practise all
    • 3.1.1Conservation of mass and balanced equations
    • 3.1.2Relative formula mass
    • 3.1.3Mass changes when a reactant or product is a gas
    • 3.1.4Chemical measurements and uncertainty
  • 3.2Moles and masses Practise all
    • 3.2.1Moles
    • 3.2.2Amounts of substances in equations
    • 3.2.3Using moles to balance equations
    • 3.2.4Limiting reactants
    • 3.2.5Concentration of solutions
  • 3.3Yield and atom economy Practise all
    • 3.3.1Percentage yield
    • 3.3.2Atom economy
  • 3.4Concentrations in mol/dm³
  • 3.5Volumes of gases
• 4Chemical changes Practise all
  • 4.1Reactivity of metals Practise all
    • 4.1.1Metal oxides
    • 4.1.2The reactivity series
    • 4.1.3Extraction of metals and reduction
    • 4.1.4Oxidation and reduction in terms of electrons
  • 4.2Reactions of acids Practise all
    • 4.2.1Reactions of acids with metals
    • 4.2.2Neutralisation and salt production
    • 4.2.3Soluble salts
    • 4.2.4The pH scale and neutralisation
    • 4.2.5Titrations
    • 4.2.6Strong and weak acids
  • 4.3Electrolysis Practise all
    • 4.3.1The process of electrolysis
    • 4.3.2Electrolysis of molten ionic compounds
    • 4.3.3Using electrolysis to extract metals
    • 4.3.4Electrolysis of aqueous solutions
    • 4.3.5Half equations at electrodes
• 5Energy changes Practise all
  • 5.1Exothermic and endothermic reactions Practise all
    • 5.1.1Energy transfer in exothermic and endothermic reactions
    • 5.1.2Reaction profiles
    • 5.1.3Energy change of reactions (bond energies)
  • 5.2Chemical cells and fuel cells Practise all
    • 5.2.1Cells and batteries
    • 5.2.2Fuel cells
• 6The rate and extent of chemical change Practise all
  • 6.1Rate of reaction Practise all
    • 6.1.1Calculating rates of reactions
    • 6.1.2Factors which affect the rate of reaction
    • 6.1.3Collision theory and activation energy
    • 6.1.4Catalysts
  • 6.2Reversible reactions and dynamic equilibrium Practise all
    • 6.2.1Reversible reactions
    • 6.2.2Energy changes and reversible reactions
    • 6.2.3Equilibrium
    • 6.2.4Changing conditions and equilibrium
    • 6.2.5Effect of changing concentration
    • 6.2.6Effect of temperature changes
    • 6.2.7Effect of pressure changes
• 7Organic chemistry Practise all
  • 7.1Carbon compounds as fuels and feedstock Practise all
    • 7.1.1Crude oil, hydrocarbons and alkanes
    • 7.1.2Fractional distillation and petrochemicals
    • 7.1.3Properties of hydrocarbons
    • 7.1.4Cracking and alkenes
  • 7.2Reactions of alkenes and alcohols Practise all
    • 7.2.1Structure and formulae of alkenes
    • 7.2.2Reactions of alkenes
    • 7.2.3Alcohols
    • 7.2.4Carboxylic acids
  • 7.3Synthetic and naturally occurring polymers Practise all
    • 7.3.1Addition polymerisation
    • 7.3.2Condensation polymerisation
    • 7.3.3Amino acids
    • 7.3.4DNA and other naturally occurring polymers
• 8Chemical analysis Practise all
  • 8.1Purity, formulations and chromatography Practise all
    • 8.1.1Pure substances
    • 8.1.2Formulations
    • 8.1.3Chromatography
  • 8.2Identification of common gases Practise all
    • 8.2.1Test for hydrogen
    • 8.2.2Test for oxygen
    • 8.2.3Test for carbon dioxide
    • 8.2.4Test for chlorine
  • 8.3Identification of ions Practise all
    • 8.3.1Flame tests
    • 8.3.2Metal hydroxides
    • 8.3.3Carbonates
    • 8.3.4Halides
    • 8.3.5Sulfates
    • 8.3.6Instrumental methods
    • 8.3.7Flame emission spectroscopy
• 9Chemistry of the atmosphere Practise all
  • 9.1Composition and evolution of the atmosphere Practise all
    • 9.1.1Proportions of gases in the atmosphere
    • 9.1.2The Earth's early atmosphere
    • 9.1.3How oxygen increased
    • 9.1.4How carbon dioxide decreased
  • 9.2Carbon dioxide and methane as greenhouse gases Practise all
    • 9.2.1Greenhouse gases
    • 9.2.2Human activities that increase greenhouse gases
    • 9.2.3Global climate change
    • 9.2.4The carbon footprint and its reduction
  • 9.3Common atmospheric pollutants Practise all
    • 9.3.1Atmospheric pollutants from fuels
    • 9.3.2Properties and effects of atmospheric pollutants
• 10Using resources Practise all
  • 10.1Earth's resources and potable water Practise all
    • 10.1.1Using resources and sustainable development
    • 10.1.2Potable water
    • 10.1.3Waste water treatment
    • 10.1.4Alternative methods of extracting metals
  • 10.2Life cycle assessment and recycling Practise all
    • 10.2.1Life cycle assessment
    • 10.2.2Ways of reducing the use of resources
  • 10.3Using materials Practise all
    • 10.3.1Corrosion and its prevention
    • 10.3.2Alloys as useful materials
    • 10.3.3Ceramics, polymers and composites
  • 10.4The Haber process and NPK fertilisers Practise all
    • 10.4.1The Haber process
    • 10.4.2Production and uses of NPK fertilisers

Guides to the Chemistry required practicals: method, variables and exam tips.

• Making salts
• Neutralisation (titration)
• Electrolysis of aqueous solutions
• Temperature changes
• Rates of reaction
• Chromatography
• Identifying ions
• Water purification