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H x c. Ch4 в x в c2h5 в x в c4h10. C2h2 x1 c2h5oh. Al4c3 x1 ch3br x2 c2h4. C2h5cl c4h10 x1 x2 x3.
Ch4 в x в c2h5 в x в c4h10. C2h2 x1 c2h5oh. Al4c3 x1 ch3br x2 c2h4. C2h5cl c4h10 x1 x2 x3.

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