The manual is addressed to those high school students and applicants who cannot yet, but really want to independently, without outside help, learn how to solve problems in chemistry. The book, involving a large number of examples, discusses in detail the solution of problems not only of the basic school course of chemistry, but also of more complex, competitive tasks. Approximately 1000 tasks are offered for self-solution. It will also be useful for teachers of schools, lyceums, gymnasiums, tutors; can be used to prepare for the exam and CT.