a) pentane
b) 2-methylethane
c) 2,3-dimethylbutane
d) pent-2-ene
e) 2,3-dimethylbut-2-ene
f) 3,3-dimethylpent-1-ene
g) 1-bromo-5-methylhexane
h) 3-chloropentane
i) 1-iodopropane
These were the IUPAC rules given to me by my professor, but double check with how yours wants the molecules to be named because some have specific rules.