This problem book is widely used in Belarusian schools and can sometimes be found in digital format on platforms like VK or specialized educational libraries. СбоРНИк задач по ХИмИИ

: Victor Nikolayevich Khvalyuk and Victor Ilyich Rezyapkin. Publisher : Adukatsiya i Vykhavanne (Minsk). ISBN : 978-985-599-248-7. Format : Hardcover (7Bc), 184 pages on offset paper. Dimensions : Approximately 218 x 147 x 12 mm.

: Each paragraph includes specific assignments for reviewing and solidifying previously learned concepts. Core Topics Covered :

: The material is divided into themes and paragraphs that mirror the official 9th-grade textbook, making it an ideal companion for lesson-by-lesson study.

Electrolytic dissociation (ions in solutions, acids, bases, and salts). Non-metals and metals and their respective compounds. Chemistry and the environment.