[nameless74]

Listed below are the condensed structural formulas or names of the nine isomers of heptane, C7H16. Write the formula and name for each.

a. CH₃CH₂CH₂CH₂CH₂CH₂CH₃    -  heptane   formula- ?

         CH₃    CH₃
         |        |   
b. CH₃CHCH₂CHCH₃

        CH₃ CH₃
         |    |
c. CH₃C--CHCH₃
         |
         CH₃

               CH₃
               |
d.  CH₃CH₂CH₂CH₂CH₂CH₃


         CH₃
         |
e. CH₃CCH₂CH₂CH₃
         |
         CH₃


f. 2-methylhexane
g. 3-ethylpentane

can anyone help me with the formula and the naming..

[lucas89]

Any idea where to start? I'd go with IUPAC naming for these, considering that may be the easiest way around naming these alkanes.