A-level Chemistry Year 12 · Edexcel
Edexcel A-level Chemistry Year 12 revision
Every topic of the Edexcel A-level Chemistry (9CH0) specification (Year 12) in order, with notes and practice questions. Subtopics marked free have their notes and questions on this site.
Topic 1: Atomic structure and the periodic table
It builds on what you learned at GCSE in Key concepts in chemistry, and takes it further.
There are 3 parts: we start with atomic structure, and finish with periodicity.
- 1.1Atomic structureFree 55 questions
- 1.2Development of models of the atom and evidence for atomic structure60 questions
- 1.3PeriodicityFree 17 questions
Topic 2: Bonding and structure
It builds on what you learned at GCSE in Key concepts in chemistry, and takes it further.
There are 3 parts: we start with ionic and metallic bonding, and how structure affects physical properties, and finish with geometry.
- 2.1Ionic and metallic bonding, and how structure affects physical properties23 questions
- 2.2BondingFree 38 questions
- 2.3Geometry: bond angles, 3D molecular shapes and drawing molecules66 questions
Topic 3: Redox I
It builds on what you learned at GCSE in Chemical changes, and takes it further.
We will go through it step by step.
- 3.1Oxidation, reduction and redox equations54 questions
Topic 4: Inorganic chemistry and the periodic table
It builds on what you learned at GCSE in Groups in the periodic table and Separate chemistry 2, and takes it further.
There are 4 parts: we start with group 2, the alkaline earth metals, and finish with qualitative analysis.
- 4.1Group 2, the alkaline earth metals29 questions
- 4.2Thermal decomposition of Group 1 and Group 2 carbonates and nitrates69 questions
- 4.3Group 7, the halogens13 questions
- 4.4Qualitative analysis: flame tests and tests for carbonate, sulfate, halide, hydroxide and ammonium ions71 questions
Topic 5: Formulae, equations and amounts of substance
It builds on what you learned at GCSE in Key concepts in chemistry and Separate chemistry 1, and takes it further.
There are 7 parts: we start with writing formulae of ions and compounds, balanced equations, state symbols and ionic equations, and finish with the practical on measuring the molar volume of a gas and determining moles from reacting masses.
- 5.1Writing formulae of ions and compounds, balanced equations, state symbols and ionic equations45 questions
- 5.2Amount of substance61 questions
- 5.3Molar gas volume and gas volume calculations62 questions
- 5.4Hydrated salts, water of crystallisation and percentage composition70 questions
- 5.5Acids, bases, salts and neutralisation63 questions
- 5.6Practical: preparing a standard solution and carrying out an acid-base titrationFree 67 questions
- 5.7Practical: measuring the molar volume of a gas and determining moles from reacting masses66 questions
Topic 6: Organic chemistry I
It builds on what you learned at GCSE in Fuels and Earth science and Separate chemistry 2, and takes it further.
There are 10 parts: we start with introduction to organic chemistry, and finish with organic synthesis.
- 6.1Introduction to organic chemistryFree 26 questions
- 6.2Crude oil, fractional distillation, fuels and pollution from combustion20 questions
- 6.3Alkanes30 questions
- 6.4AlkenesFree 25 questions
- 6.5Halogenoalkanes32 questions
- 6.6Ozone depletion by CFCs and radical chain reactions in the atmosphere30 questions
- 6.7Alcohols25 questions
- 6.8Practical: preparing an organic liquid by heating under reflux and distillation (e.g. oxidation of an alcohol)62 questions
- 6.9Practical: purifying an organic liquid using a separating funnel, drying agent and redistillation34 questions
- 6.10Organic synthesis: reaction pathways and multi-step routes between functional groups21 questions
Topic 7: Modern analytical techniques I
It builds on what you learned at GCSE in Separate chemistry 2, and takes it further.
There are 2 parts: we start with organic analysis, and finish with infrared absorption, bond vibrations and the greenhouse effect.
- 7.1Organic analysis59 questions
- 7.2Infrared absorption, bond vibrations and the greenhouse effect16 questions
Topic 8: Energetics I
It builds on what you learned at GCSE in Rates of reaction and energy changes, and takes it further.
There are 2 parts: we start with energetics, and finish with the practical on measuring enthalpy changes by calorimetry (neutralisation, displacement, solution and combustion).
- 8.1Energetics64 questions
- 8.2Practical: measuring enthalpy changes by calorimetry (neutralisation, displacement, solution and combustion)65 questions
Topic 9: Kinetics I
It builds on what you learned at GCSE in Rates of reaction and energy changes, and takes it further.
There are 2 parts: we start with kinetics, and finish with the practical on investigating rates of reaction by gas collection, clock reactions and continuous monitoring.
- 9.1Kinetics67 questions
- 9.2Practical: investigating rates of reaction by gas collection, clock reactions and continuous monitoring72 questions
Topic 10: Equilibrium I
It builds on what you learned at GCSE in Extracting metals and equilibria, and takes it further.
We will go through it step by step.
- 10.1Chemical equilibria and KcFree 27 questions
Topic S: Practical and maths skills
It builds on what you learned at GCSE in Practical and maths skills, and takes it further.
There are 10 parts: we start with planning investigations, and finish with graphs.
- S.1Planning investigations: variables, hypotheses and choosing apparatus and techniquesFree 39 questions
- S.2Safe working: hazards, risk assessment and environmental and ethical considerations30 questions
- S.3Using apparatus accurately: balances, burettes, pipettes, volumetric flasks, gas syringes and thermometers74 questions
- S.4Basic techniques: heating, filtration, drying and heating to constant mass74 questions
- S.5Measurement uncertainty, percentage error and improving precision33 questions
- S.6Recording, presenting and evaluating results: tables, graphs, anomalies and conclusions34 questions
- S.7Arithmetic: standard form, significant figures, unit conversions and estimationFree 16 questions
- S.8Ratios, fractions, percentages and proportionality in chemical calculations26 questions
- S.9Algebra: rearranging and substituting into equations (n = m/M, c = n/V, pV = nRT, Kc)40 questions
- S.10Graphs: plotting, line of best fit, gradients, tangents and intercepts34 questions