Use precise queries like "химия 10 класс габриелян учебник pdf" to find specific editions.
Many schools provide access codes for digital platforms like "Lecta" or "RESh" (Russian Electronic School).
Sites such as Internet Archive or specialized educational repositories often host public domain or open-access materials.
Which specific or school program is required for the course?
Use PDF readers that support bookmarks to quickly jump between chapters like Organic Chemistry or Chemical Bonds.
LitRes or MyBook offer official digital versions for purchase or via library subscriptions.