Images C2H6 H2

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C2h6 h2. C4o2h10 в co2. C2h2 o2 co2 h2o. Co2+h2o. C2h2+o2.
C4o2h10 в co2. C2h2 o2 co2 h2o. Co2+h2o. C2h2+o2.

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