Chemistry. Difficult tasks of the OGE

The manuals of the series "difficult tasks of the OGE" are designed to develop skills, consolidate the methods and methods of solving the most complex tasks of the OGE in chemistry both under the guidance of the teacher and in the independent training of students in grades 8-9 for state final certification. The selection of tasks included in the manual was based on methodological recommendations prepared by specialists of the Federal Institute of Pedagogical Dimension based on the analysis of typical errors of schoolchildren when passing the OGE in 2018.
This study guide, while using with other manuals to prepare for the OGE, will help students achieve the maximum individual result in the chemistry exam