The 9th Grade Chemistry Workbook by T.A. Borovskikh, published by "Ekzamen" in compliance with FGOS standards, serves as a primary supplementary tool for the Rudzitis and Feldman textbook. The text provides extensive, well-regarded exercises on key 9th-grade topics, including electrolytic dissociation and non-metals, aiding in OGE preparation and self-study. Solutions for the workbook are available on educational resources such as Megaresheba .
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