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Ya. L. Goldfarb, Yu. V. Khodakov, and Yu. B. Dodonov. skachat gdz sbornik zadach po khimii dlia klassa khodakov
Contains over 2,000 tasks and exercises covering basic concepts, chemical laws, organic, and inorganic chemistry. Accessing the Materials Direct PDF previews are sometimes available on specialized
Digital archives like the National Electronic Library (НЭБ) provide catalog details and digital access for historical editions. Yu. V. Khodakov