Photos С2Н4 СН4

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С2н4 сн4. СН ≡ С – СН = сн2. Н3с-сн2-СН-сн3-сн2. Н2с=СН-СН=сн2. Н3с–с=СН 2 | СН 3.
СН ≡ С – СН = сн2. Н3с-сн2-СН-сн3-сн2. Н2с=СН-СН=сн2. Н3с–с=СН 2 | СН 3.

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