> I have a question regarding bond-line formulas. In problem 1.24 p. 47
> c) there is nothing but a square and a line indicating a double bond.
> How do I know what molecules of carbon are at each corner? For
> instance, how do I know whether the correct answer is CH, CH2,or CH3?
>
> Thanks!
> hthomas@seanet.com
>
You have to look at how many other atoms C is bonded to. If it is at a
corner where there is no double bond, it would be a CH2. If it is part
of the double bond, it would be CH. Since this is a square, all of the
carbons are bonded to at least 2 other carbons, so none of them would be
CH3. Hope that helps.