Chemistry Help UKFree A-level chemistry practice

AQA Year 13 Chemistry

Choose the Year 13 topic you are studying. Earlier Year 12 material that often returns in full A-level papers is kept in a separate synoptic section.

Year 13 organic chemistry Acids, bases & buffers

What are you working on?

Write the governing equation or equilibrium expression first, then decide what each value in the question represents.

Thermodynamics

AQA 3.1.8
ThermodynamicsStart here · ionic energy cycles, entropy, Gibbs and temperature Open Entropy & Gibbs free energyΔS, ΔG, unit traps and feasibility Open Temperature & feasibilityCrossover temperature and ΔG–T graphs Open Lattice, hydration & solutionSolution cycles, missing terms, ionic trends and perfect-ionic-model evidence Open Thermodynamics exam setsLinked original mini-papers across the full thermodynamics topic Open Born–Haber cyclesBuild cycles · 1:1, 1:2 and 2:1 salts · missing terms Open My Chemistry questions97 multiple-choice questions Practise

Rate equations

AQA 3.1.9
Rate equations topic routeExperimental orders, rate constants, mechanisms and Arrhenius Open Rate equation & mechanism questionsOrders, rate-determining steps and mechanism evidence Open Rate equation questionsOrders, rate constants and units Open Rate Order DetectiveDeduce orders from experimental evidence Open Arrhenius equation & plotsk, Ea and ln k against 1/T Open Rates quick checkCore rate and equilibrium recall Open My Chemistry questions113 multiple-choice questions Practise

Equilibrium constant Kp

AQA 3.1.10
Kp & gaseous equilibriumPartial pressure, Kp and equilibrium response Open Kp calculationsPartial pressures, Kp expressions and units Open My Chemistry questions76 multiple-choice questions Practise

Electrode potentials & electrochemical cells

AQA 3.1.11
Electrode potentialsStart here · E° reasoning, practice and exam-safe wording Open Generated electrode-potential exam setsOriginal linked mini-papers with mark points and worked reasoning Open Electrode-potential questionsE°cell, reaction direction and overall equations Open E° ExplorerCompare redox couples and see the reaction route Open E versus E°Concentration, pressure and half-cell equilibrium Open Feasibility & advanced redoxNon-standard conditions, disproportionation and catalysis Open Electrochemical Cell LabBuild half-cells, electrodes, salt bridges and electron flow Open Standard hydrogen electrodeBuild the 0.00 V reference and learn standard conditions Open Conventional cell notationAQA cell representations, phase boundaries and Pt Open RP8 electrochemical-cell practicePractical method, standard conditions and evaluation Open Fuel cells & rechargeable cellsCommercial cells, discharge/recharge and board-specific scope Open Commercial-cell questionsStorage, fuel-cell and recharge exam practice Open Hard electrode-potential questionsUnfamiliar data, missing E° and selective reduction Open My Chemistry questions82 multiple-choice questions Practise

Acids and bases

AQA 3.1.12
Acid–base calculationspH, Ka, Kw and buffers Open Buffer & indicator reasoningSpecies inventory, buffer action and pH-curve decisions Open Acids & buffers quick checkpH, Ka and buffer recall Open Acids & buffers topic routeFocused Year 13 practice Open My Chemistry questions143 multiple-choice questions Practise

Period 3 elements and oxides

AQA 3.2.4
Open the linked element investigationPeriodic table explorer · full A level Open explorer Revise Period 3 elements and oxidesStructures, reactions with water and acid–base behaviour of the oxides Open My Chemistry questions90 multiple-choice questions Practise

Transition metals

AQA 3.2.5
Rotate complex-ion modelsPeriodic table explorer · full A level Open explorer Transition-metal exam setsConfigurations, complexes, colour, chelate effect and catalysis Open Complex-ion labLigands, coordination and stereochemistry Open My Chemistry questions124 multiple-choice questions Practise

Reactions of ions in aqueous solution

AQA 3.2.6
Open the linked element investigationPeriodic table explorer · full A level Open explorer Revise ions in aqueous solutionHydroxide precipitates, ligand substitution and amphoteric behaviour Open Qualitative-analysis questionsReagents, observations, ion tests and test sequences Open My Chemistry questions36 multiple-choice questions Practise

Practical chemistry

AQA practical skills
AQA required practicalsRequired practicals 1–12 Open Practical skills practiceMethods, data and evaluation Open

Synoptic Year 12 review

Earlier content in full A-level papers
Maxwell–Boltzmann distributionsTemperature, catalysts and exam graphs Open Hard isotope algebraAtomic-structure stretch Open Advanced ionisation energySecond and third IE challenge Open Bonding BlasterFast bonding recall Open Kc refresherYear 12 equilibrium practice before Kp Open Half-equation practiceYear 12 redox practice before electrode potentials Open All calculationsBrowse calculation generators Open

More question practice

Aqua ion reactionsPractise the observations, equations and excess-reagent behaviour of Fe²⁺, Fe³⁺, Cu²⁺ and Al³⁺ aqua ions. Open Period 3 oxidesWork with oxide structures, water reactions, acid–base behaviour and balanced equations, including aluminium oxide and silicon dioxide. Open
Year 13 organic chemistryAromatic chemistry, synthesis and spectroscopyOpen → Acids, bases & buffersFocused calculation and recall routeOpen →