If you're looking for the 2010 edition (often co-authored with V.M. Deputat and others), several platforms offer free access:
Provides comprehensive answers for the 2010 profile level, organized by paragraphs and chapters. khimiia 10 klass burinskaia profil reshebnik
Breakdown of complex calculations for elements like Oxygen and Sulfur. If you're looking for the 2010 edition (often
Apply the "70/30 rule"—spend 70% of your study time active (solving problems) and only 30% passive (reading the text). khimiia 10 klass burinskaia profil reshebnik