A pdf presentation covering all you need to know about AS Chemistry Topic 1: Formulae, Equations and Amounts of Substances. 119 slides of detailed notes, step by step examples, and practice questions with answers. Covers: ionic equations, typical reactions of acids, displacement reactions, precipitation reactions, mass calculations, moles, reacting masses, empirical formula, molecular formula, percentage yield, atom economy, parts per million, and concentration calculations. This presentation was made to follow the Edexcel International A Level specification but is suitable for all exam boards.

A pdf presentation covering everything you need for AS Chemistry Topic 2: Atomic Structure and the Periodic Table. Includes detailed notes, step-by-step examples, and practice questions with answers. Topics covered include: Structure of atoms and isotopes Relative atomic mass Mass spectrometry Atomic orbitals Electronic configurations Ionisation energies Periodic properties This presentation was made to follow the Edexcel International A Level specification but is suitable for all exam boards.