The book contains the most important materials for the entire school chemistry course in an easy-to-remember form. Information is presented in visual diagrams and tables, which will allow you to better understand and learn it. With the help of the manual, you can quickly find any topic and systematize the existing knowledge. Information is provided on all sections of general, inorganic and organic chemistry studied at school, as well as numerous tables with numerical values ​ ​ of the most important physicochemical quantities necessary to solve problems of a high level of complexity.