Cambridge A-level Chemistry Year 12 revision

Topic 1: Atomic structure

It builds on what you learned at IGCSE in Atoms, elements and compounds, and takes it further.

There are 2 parts: we start with atomic structure, and finish with development of models of the atom and evidence for atomic structure.

1. 1.1Atomic structureFree 55 questions
2. 1.2Development of models of the atom and evidence for atomic structure60 questions

Topic 2: Atoms, molecules and stoichiometry

It builds on what you learned at IGCSE in Stoichiometry, and takes it further.

There are 5 parts: we start with amount of substance, and finish with the practical on measuring the molar volume of a gas and determining moles from reacting masses.

1. 2.1Amount of substance61 questions
2. 2.2Writing formulae of ions and compounds, balanced equations, state symbols and ionic equations45 questions
3. 2.3Hydrated salts, water of crystallisation and percentage composition70 questions
4. 2.4Practical: preparing a standard solution and carrying out an acid-base titrationFree 67 questions
5. 2.5Practical: measuring the molar volume of a gas and determining moles from reacting masses66 questions

Topic 3: Chemical bonding

It builds on what you learned at IGCSE in Atoms, elements and compounds, and takes it further.

There are 2 parts: we start with bonding, and finish with ionic and metallic bonding, and how structure affects physical properties.

1. 3.1BondingFree 38 questions
2. 3.2Ionic and metallic bonding, and how structure affects physical properties23 questions

Topic 4: States of matter

It builds on what you learned at IGCSE in States of matter, and takes it further.

We will go through it step by step.

1. 4.1Molar gas volume and gas volume calculations62 questions

Topic 5: Chemical energetics

It builds on what you learned at IGCSE in Chemical energetics, 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).

1. 5.1Energetics64 questions
2. 5.2Practical: measuring enthalpy changes by calorimetry (neutralisation, displacement, solution and combustion)65 questions

Topic 6: Electrochemistry

It builds on what you learned at IGCSE in Electrochemistry, and takes it further.

We will go through it step by step.

1. 6.1Oxidation, reduction and redox equations54 questions

Topic 7: Equilibria

It builds on what you learned at IGCSE in Chemical reactions and Acids, bases and salts, and takes it further.

There are 2 parts: we start with chemical equilibria and Kc, and finish with acids, bases, salts and neutralisation.

1. 7.1Chemical equilibria and KcFree 27 questions
2. 7.2Acids, bases, salts and neutralisation63 questions

Topic 8: Reaction kinetics

It builds on what you learned at IGCSE in Chemical reactions, 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.

1. 8.1Kinetics67 questions
2. 8.2Practical: investigating rates of reaction by gas collection, clock reactions and continuous monitoring72 questions

Topic 9: The Periodic Table: chemical periodicity

It builds on what you learned at IGCSE in The Periodic Table, and takes it further.

We will go through it step by step.

1. 9.1PeriodicityFree 17 questions

Topic 10: Group 2

It builds on what you learned at IGCSE in The Periodic Table, and takes it further.

There are 2 parts: we start with group 2, the alkaline earth metals, and finish with thermal decomposition of Group 1 and Group 2 carbonates and nitrates.

1. 10.1Group 2, the alkaline earth metals29 questions
2. 10.2Thermal decomposition of Group 1 and Group 2 carbonates and nitrates69 questions

Topic 11: Group 17

It builds on what you learned at IGCSE in The Periodic Table, and takes it further.

There are 2 parts: we start with group 7, the halogens, and finish with qualitative analysis.

1. 11.1Group 7, the halogens13 questions
2. 11.2Qualitative analysis: flame tests and tests for carbonate, sulfate, halide, hydroxide and ammonium ions71 questions

Topic 12: Nitrogen and sulfur

It builds on what you learned at IGCSE in Chemistry of the environment, and takes it further.

We will go through it step by step.

1. 12.1Nitrogen and sulfur: ammonia, the ammonium ion, nitrogen oxides and sulfur dioxide17 questions

Topic 13: An introduction to AS Level organic chemistry

It builds on what you learned at IGCSE in Organic chemistry, and takes it further.

We will go through it step by step.

1. 13.1Introduction to organic chemistryFree 26 questions

Topic 14: Hydrocarbons

It builds on what you learned at IGCSE in Organic chemistry, and takes it further.

There are 3 parts: we start with alkanes, and finish with alkenes.

1. 14.1Alkanes30 questions
2. 14.2Crude oil, fractional distillation, fuels and pollution from combustion20 questions
3. 14.3AlkenesFree 25 questions

Topic 15: Halogen compounds

We will go through it step by step.

1. 15.1Halogenoalkanes32 questions

Topic 16: Hydroxy compounds

It builds on what you learned at IGCSE in Organic chemistry, and takes it further.

We will go through it step by step.

1. 16.1Alcohols25 questions

Topic 17: Carbonyl compounds

We will go through it step by step.

1. 17.1Carbonyl compounds: aldehydes and ketones, their reactions and tests21 questions

Topic 18: Carboxylic acids and derivatives

It builds on what you learned at IGCSE in Organic chemistry, and takes it further.

We will go through it step by step.

1. 18.1Carboxylic acids and esters: making acids, their reactions, esterification and hydrolysis32 questions

Topic 19: Nitrogen compounds

We will go through it step by step.

1. 19.1Nitrogen compounds at AS: primary amines, nitriles and hydroxynitriles22 questions

Topic 20: Polymerisation

It builds on what you learned at IGCSE in Organic chemistry, and takes it further.

We will go through it step by step.

1. 20.1Addition polymers: poly(alkenes), PVC, identifying monomers and disposing of polymers14 questions

Topic 21: Organic synthesis

We will go through it step by step.

1. 21.1Organic synthesis: reaction pathways and multi-step routes between functional groups21 questions

Topic 22: Analytical techniques

It builds on what you learned at IGCSE in Experimental techniques and chemical analysis, and takes it further.

There are 2 parts: we start with organic analysis, and finish with infrared absorption, bond vibrations and the greenhouse effect.

1. 22.1Organic analysis59 questions
2. 22.2Infrared absorption, bond vibrations and the greenhouse effect16 questions

Topic P: Practical skills (Paper 3)

There are 7 parts: we start with planning investigations, and finish with the practical on purifying an organic liquid using a separating funnel, drying agent and redistillation.

1. P.1Planning investigations: variables, hypotheses and choosing apparatus and techniquesFree 39 questions
2. P.2Using apparatus accurately: balances, burettes, pipettes, volumetric flasks, gas syringes and thermometers74 questions
3. P.3Basic techniques: heating, filtration, drying and heating to constant mass74 questions
4. P.4Measurement uncertainty, percentage error and improving precision33 questions
5. P.5Recording, presenting and evaluating results: tables, graphs, anomalies and conclusions34 questions
6. P.6Practical: preparing an organic liquid by heating under reflux and distillation (e.g. oxidation of an alcohol)62 questions
7. P.7Practical: purifying an organic liquid using a separating funnel, drying agent and redistillation34 questions

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