answersLogoWhite

0

You should count the carbons first by counting the longest chain possible, if there are multiple bonds, then the multiple bonds must be in the chain. Find the straight chain first if you can. Once you have the number of carbons you will know which prefix to use which is what the first person who answered showed youshowed you. Alkanescontain single bonds, alkenescontain doublebond, alkynescontain triple bondsThen if its an alkane, it ends with -ane, alkene ends with -ene, alkyne ends with -yne.

So 3 carbons, 8 hydrogens (CnH2n+2..C3H8) is the formula for propane.
User Avatar

Wiki User

16y ago

What else can I help you with?