Chemistry study guides

An overview of the Chemical reactions topic (C3) in OCR Gateway GCSE Chemistry A (J248), mapping chemical equations and conservation of mass, the mole and reacting masses, energetics and reaction profiles, the reactions of acids and the pH scale, oxidation and reduction, and electrolysis.

An overview of the Elements, compounds and mixtures topic (C2) in OCR Gateway GCSE Chemistry A (J248), mapping ionic, covalent and metallic bonding, how structure and bonding determine properties, nanoparticles and surface area, and the techniques for separating mixtures.

An overview of the Global challenges topic (C6) in OCR Gateway GCSE Chemistry A (J248), mapping the Haber process and fertilisers, life cycle assessment and recycling, crude oil and hydrocarbons, the atmosphere and greenhouse gases, atmospheric pollutants, and using the Earth's resources and water.

An overview of the Monitoring and controlling chemical reactions topic (C5) in OCR Gateway GCSE Chemistry A (J248), mapping rates of reaction and collision theory, measuring and calculating rates, concentration and titrations, reversible reactions and equilibrium, and catalysts and controlling reactions.

An overview of the Particles topic (C1) in OCR Gateway GCSE Chemistry A (J248), mapping the particle model and states of matter, atomic structure, the historical development of the atomic model, electron configuration, and the periodic table including the trends in Groups 1, 7 and 0.

An overview of the Predicting and identifying reactions and products topic (C4) in OCR Gateway GCSE Chemistry A (J248), mapping the reactivity series and displacement, extracting metals and predicting reactions, flame and gas tests, tests for negative ions, and instrumental and chromatographic analysis.