Two-level textbook "Chemistry. 9 cl. '' contains materials for basic and advanced study of chemistry in school. The textbook takes into account the latest achievements of theoretical and practical chemistry, offers a modern method of teaching the subject. Together with the textbook of the same authors "Chemistry . 8 cl. 'and other benefits ('Chemistry.) A book for practical training. 8 cl. '', ''Chemistry. A book for practical training. 9 cl. '', ''Chemistry. Short Course. 8-9 cl. '''), it compiles a kit that can serve as a full chemistry course for primary school or an elementary chemistry course for secondary school, where the subject ''Chemistry''' is preserved in grades 10-11. To the textbook of the 9th grade, manuals for teachers of P. are issued P. Suvorovtseva and L. C. Guzeya 'Chemistry . 8-9 grades', as well as P. benefits P. Suvorovtseva et al . "Chemistry. Tests. 8-9 cl. '', ''Chemistry. Tests. 10-11 cl. '.