SAS p.235 # 31-38

31) a) C3H8
      b) C5H12

32) when it ends in ane, it means that its a single bond between the carbons

33) Yes all of the molecular structures are isomers of one another because they have identical molecular formulas.

34)


35) The shortest chain alkane that can demonstrate isomerism is butane.

36) Because its the same molecular formula but in different forms.

37) a)

      b) branched isomers have lower boiling points and strait isomers have a higher boiling point.

38) a) a short straight chain
      b) a short branched chain
      c) a short branched chain