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The collection contains typical problems and tasks covering the educational topics of the chemistry course for grades 10 and 11 with samples of their solutions. A significant number of tasks allows the teacher to use them in the current learning activities of students, as well as to form the necessary number of options for testing.

The second section offers cognitive tasks, tasks of everyday, industrial, environmental content, which aim to promote the formation of key and subject competencies of students, help to assess the role of chemical science in modern society.

Recommended for teachers and students of secondary schools, lyceums, gymnasiums.