This is a 5 inches by 8 inches pocket size book of 52 pages that is very small and can be carried about and used when needed. This text provides key chemical terms. It defines terms dealing with states of matter, compounds (including acids, bases and salts), radioactivity, bonding, solutions, reactions, oxidation, reduction, polymers, combustion, pollution, equilibrium, enthalpy, entropy, organic chemistry terms and many many more..The chemical words/terms in this book are listed in alphabetical order from A to Z, with the table of contents indicating the page where each letter is located. This book serves as a very useful guide for School & College Students, including candidates writing competitive or entrance exams.