This is basically a notes program for Chemistry in Year 11. It is the core part of a forthcoming series of chemistry programs. This module is designed for FX 9860 users, as it is best kept in storage memory until needed (due to the large size, which also means lots of information). This core module features mole concepts, % composition, empirical formulae, general reactions, ions + valences, kinetic theory, dot diagrams, exo/endo reactions, factors that affect the rate of reaction, gas relationships, an organic chemistry map, percentage composition and some prefixes.