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.

HEEEEEEEEEEEEEEEEEEEEEEEEEE

This reaction, H2 + (CH)2, involves the addition of hydrogen gas (H2) to acetylene ((CH)2). Acetylene is a hydrocarbon with a triple bond between two carbon atoms. In the presence of a catalyst, hydrogen gas can add across the triple bond, resulting in the formation of a new product.

The most common product of this reaction is the complete hydrogenation of acetylene to form ethane (H3C-CH3). Ethane is a saturated hydrocarbon with a single bond between its carbon atoms.

However, it's important to note that under certain conditions, such as partial hydrogenation, ethene (H2C=CH2) can also be formed as a product. Partial hydrogenation refers to the addition of only some of the hydrogen atoms to the acetylene molecule, resulting in the formation of a double bond between the two carbon atoms.

So, in summary, the reaction H2 + (CH)2 can lead to the formation of either ethane (H3C-CH3) or ethene (H2C=CH2) depending on the specific conditions and catalyst used.