Homework Help: ap chemistry

Posted by sara on Sunday, October 29, 2006 at 5:57pm.

what does H2 + CH2 form? (what product?)

What is CH2? There is a (CH)2 but I don't know of a CH2.

Yes, I meant to ask:
What product is formed by this reaction:
H2 + (CH)2

My original answer is gone but I will repost. (CH)2 is HCtriplebondCH which is acetylene. H2 gas adds across the triple bond. Usually a catalyst is needed. Under some conditions ethene, H2C=CH2, is formed (partial hydrogenation) but in most cases acetylene is completely hydrogenated to form H3C-CH3, ethane.

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