Answer
a) $CH_3CH_2CH_3$
b) propane
c) $CH_3CH_2CH_2CH_2CH_2CH_2CH_2CH_3$
d) pentane
Work Step by Step
a) propane has 3 carbon atoms and 8 hydrogen atoms. Its formula is $CH_3CH_2CH_3$
b) 3 carbon atoms in the alkane. So, its name is propane
c) octane has 8 carbon atoms and 18 hydrogen atoms. Its formula is $CH_3CH_2CH_2CH_2CH_2CH_2CH_2CH_3$
d) 5 carbon atoms in the alkane. So, its name is pentane
