In the manual prepared by the staff of the Department of Chemistry of the Russian National Research Medical University named after V.I. NI Pirogov, the leading medical university of the country, considered all sections of the school chemistry course. Each section consists of a theoretical introduction, typical tasks and examples of their solution, in combination, allowing you to improve your knowledge in the field of chemistry and get a high score on the final exam for admission to the chemical, biological and medical faculties of universities. The book is aimed at senior students of secondary and specialized schools, lyceums, gymnasiums entering universities, college students, students of chemical schools and preparatory chemistry courses to prepare students for the USE