How many carbon atoms does pentane have? hexane? heptane?

1 Answer
May 26, 2017

#C_5H_12#, versus #C_6H_14#, versus #C_7H_16#................

Explanation:

The series are all saturated alkanes....#C_nH_(2n+2)#.......you certainly have to learn the names of the first 10 or so alkanes. And of course each formula will have several isomeric forms.