Images C H CH

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C h ch. Ch3-c=o-c2h5. C2h2+h2. Карбоновая кислота и c2h5oh. Ch3-o-c2h5.
Ch3-c=o-c2h5. C2h2+h2. Карбоновая кислота и c2h5oh. Ch3-o-c2h5.

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