Every topic of Cambridge AS and A Level Chemistry 9701, one-to-one with the official document. AS Level covers topics 1 to 22 (Year 1). A Level extends with topics 23 to 37 (Year 2). Interactive labs are live for the first 18 topics; lessons and practice follow topic by topic.
Trainers for the practical papers, marked the way examiners mark. See every practical trainer.
Protons, neutrons and electrons, and the orbitals they live in. Ionisation energies as the first hard evidence for shells and sub-shells.
The mole, formulae and reacting quantities. Masses, gas volumes and solution concentrations from a balanced equation.
Ionic, covalent and metallic bonding, the shapes of molecules, and the intermolecular forces that decide melting points, boiling points and solubility.
Ideal gases and pV = nRT, the liquid state, and the four kinds of crystal lattice.
Enthalpy changes, how they are measured, and Hess's Law as the tool for the ones that cannot be measured directly.
Oxidation numbers, electron transfer and balancing redox equations. The AS half of a topic that returns in Year 2 with electrode potentials.
Dynamic equilibrium, Le Chatelier's principle, Kc and Kp, and the Brønsted–Lowry picture of acids and bases.
Collision theory, the Boltzmann distribution, activation energy and catalysis. Why a small rise in temperature makes such a large difference to rate.
Period 3 as the worked example of periodicity: atomic radius, ionisation energy, melting point, and the oxides and chlorides across the period.
Trends down the alkaline earth metals: reactions with oxygen and water, thermal stability of carbonates and nitrates, and uses of their compounds.
The halogens: volatility, oxidising power, displacement reactions, the halide tests, and the manufacture of chlorine.
Why N2 is so unreactive, ammonia and the ammonium ion, oxides of nitrogen and sulfur, and the environmental chemistry of acid rain.
The language of organic chemistry: formulae, functional groups, naming, reaction types, molecular shape, and isomerism.
Alkanes and alkenes: combustion, free-radical substitution, electrophilic addition, and the test for unsaturation.
Halogenoalkanes: nucleophilic substitution by SN1 and SN2, elimination, and the reactivity order of the C–X bonds.
Alcohols: classification, oxidation with acidified dichromate, esterification, dehydration, and the tri-iodomethane test.
Aldehydes and ketones: nucleophilic addition, reduction, and the tests that tell them apart.
Carboxylic acids and esters: formation, acidity, and hydrolysis.
Primary amines and nitriles: formation, basicity, and hydrolysis of the nitrile group.
Addition polymerisation: monomers to repeat units and back again.
Multi-step routes built from the AS reaction map.
Infrared spectroscopy and mass spectrometry as tools for identifying an unknown.
Lattice energy and Born–Haber cycles, enthalpies of solution and hydration, entropy, and Gibbs free energy as the test of feasibility.
Electrolysis quantitatively, standard electrode potentials, cell potentials and feasibility, and the Nernst equation.
Ka, Kw and pH calculations, buffers, solubility products, and partition coefficients.
Rate equations, orders of reaction, half-life, rate-determining steps, and the Arrhenius equation.
Thermal decomposition and solubility trends explained through lattice energy and enthalpy of hydration.
Variable oxidation states, complexes and ligands, colour, stereoisomerism in complexes, and stability constants.
Extending the AS toolkit: new functional groups, benzene's shape, and optical isomerism.
Arenes: electrophilic substitution of benzene and its derivatives, and the directing effects of substituents.
Halogenoarenes and why the C–Cl bond on a benzene ring resists nucleophiles.
Alcohols revisited and phenol: acidity, bromination and nitration of the ring.
Relative acidities of carboxylic acids, and acyl chlorides as the reactive derivative.
Primary and secondary amines, amides, amino acids and peptides.
Condensation polymerisation, deducing monomers from polymers, and degradable polymers.
Multi-step routes across the full A Level reaction map.
Chromatography, and proton and carbon-13 NMR spectroscopy.
The full 0620 syllabus, mapped the same way.