Another reliable option for step-by-step answers is Gitem.me , which links to the basic level textbook and workbook. :
Химия. 11 класс. Базовый уровень, О. С. Габриелян - Litres.uz
: Specific solutions for tests and laboratory exercises.
The most comprehensive source for solutions to this textbook is GDZ.ru , which covers the basic level and includes versions from various years (2015–2018).
: Periodic laws and the structure of elements. Chemical Bonds : Types of bonds and molecular structures. Reactions : Classification and equations.
Online GDZ platforms allow you to browse answers by chapter or exercise number without needing to download a large file. :