Which structural formula represents a molecule that is not an isomer of pentane? н-с-с-с-с-н н-с-с-с-с-с-н н н н-с-н н-с-с-с-н н- с-н hн ii-0-і і х-о-іі submit answer previous next

Whichever one of your answer options does not have a molcular formula of C5H12. It's hard for me to tell what the answer options show.

Explanation:

Pentane is a 5-carbon alkane, meaning all carbon atoms are connected by single bonds. In pentane, all the bonds not occupied by carbon atoms are occupied instead by hydrogen atoms. In general, a quikc way of figuring out the molecular formula for an alkane is CnH(n+2), where n is the number of carbon atoms. If you have a molecular formula that does not follow this rule, either there is a different number of carbon atoms, or there is a double or triple bond between carbon atoms such that there are fewer bonds available for hydrogen atoms to occupy.

look at the !

pleaze mark brainliest!

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.