Chemistry grade 11

This manual is intended for those who already have knowledge of chemistry in the framework of the school and want to repeat, systematize and test their knowledge in preparation for all -Russian verification work. The content of the manual corresponds to the chemistry program for secondary schools, and the structure is similar to the model proposed by the Federal Service for Supervision of Education and Science of the Russian Federation. The manual offers 20 options for tasks and a sample of completion and evaluating one option. The content of each option includes 15 tasks, different in shape and level of complexity. Tasks of an increased level of complexity in each version 4 (9, 10, 13, 14) and 11 tasks of the base level