Tutorial. Chemistry. Collection of tasks and exercises grade 9. Gabrielyan O. S.

The collection contains tasks and exercises of different levels of complexity corresponding to the Chemistry Chemistry rate. The collection includes algorithms for solving various problems and tasks for their development. At the end of each section, a control test is proposed, which can be used as a teacher to check the level of assimilation of the topic, as well as the students themselves for self -control. This collection can be used when working with any UMK in chemistry, as it allows you to supplement and significantly expand the material of any textbook. The manual is intended for students and teachers.