Answer
a. BCl^3
b. Dinitrogen pentoxide
c. Nitric acid
d. CH3COOH
Work Step by Step
a. Boron is just boron, so its one boron. However, its trichloride, so there must be three chlorines. Therefore, its BCl^3.
b. Di means two, penta means five. therefore its dinitrogen pentoxide.
c. Nitric acid
d. CH3COOH