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A topic-by-topic revision guide for AQA A-Level Chemistry (7405) kinetics and equilibrium — collision theory, rate equations and orders, the Arrhenius equation, rate-determining step, Le Chatelier's principle, the equilibrium constants Kc and Kp, plus the required practicals for rates and equilibria.

A topic-by-topic revision guide for AQA A-Level Chemistry (7405) organic chemistry advanced — aldehydes and ketones, carboxylic acids and derivatives (esters/amides), aromatic chemistry (Friedel-Crafts), amines, amino acids/proteins/DNA, condensation polymers, organic synthesis pathways, and asymmetric synthesis.

A topic-by-topic revision guide for AQA A-Level Chemistry (7405) organic chemistry foundations — IUPAC nomenclature, isomerism, optical isomerism, alkanes and free-radical substitution, alkenes and electrophilic addition, addition polymers, halogenoalkanes (SN1/SN2), alcohols, organic mechanisms, plus required practicals RP4/RP5/RP6.

A topic-by-topic revision guide for AQA A-Level Chemistry (7405) redox and electrochemistry — oxidation numbers and half-equations, standard electrode potentials and the SHE, electrochemical cells, EMF and feasibility, commercial cells and fuel cells, redox titrations, electrolysis and Faraday's laws.

Grade Coach watches your quiz and exam history on every course, predicts the grade you're tracking for, and writes a personalised weekly study plan focused on the single highest-leverage weak topic. Free predictions; AI study plan for subscribers.

LearningBro now ships four AI features on every lesson page: AI Tutor chat, Examiner Mode for sentence-by-sentence essay marking, Cross-Subject Synoptic recap, and Voice mode. Here's what each does and when to reach for it.

When an A-Level Physics question hits log laws, or a Chemistry rate equation needs natural logarithms, the Synoptic Tutor pulls a 90-second recap from your other courses on demand. Live on every A-Level STEM lesson.

A topic-by-topic revision guide for the ecosystems section of the Edexcel A-Level Biology 9BI0 specification — biotic and abiotic factors, energy transfer, the carbon and nitrogen cycles, succession, population dynamics, fieldwork sampling and statistics, climate change, agricultural pollution, and conservation.

A lesson-by-lesson guide to the Edexcel A-Level Biology 9BI0 exam-preparation course — paper structure and AO weighting, command words, maths and stats, the 16 core practicals, graph skills, 6-mark and 9-mark levels-marked answers, synoptic Paper 3, common mistakes, evidence-based revision, and mock-exam diagnostics.

A topic-by-topic revision guide for the genetic variation and inheritance section of the Edexcel A-Level Biology 9BI0 specification — gene and chromosome mutations, meiosis, monohybrid and dihybrid crosses, codominance, sex linkage, autosomal linkage, the chi-squared test, natural selection, genetic drift, and the Hardy-Weinberg principle.

A topic-by-topic revision guide for the biological molecules section of the Edexcel A-Level Biology 9BI0 specification — water and inorganic ions, carbohydrates, lipids, proteins, enzymes and enzyme kinetics, nucleic acids and ATP.

A topic-by-topic revision guide for the cells, viruses and reproduction section of the Edexcel A-Level Biology B 9BI0 specification — eukaryotic and prokaryotic ultrastructure, the cell membrane, membrane transport, mitosis, meiosis, stem cells and differentiation, gametogenesis and fertilisation.