Chapter 2, Problem 21PE

Name the following compounds using Greek prefixes when needed: (a) ${\text{PCl}}_{\text{3}},$(b) ${\text{SO}}_{\text{2}},$ (c) ${\text{Cl}}_{\text{2}}{\text{O}}_{\text{7}}$, and (d) ${\text{H}}_{\text{2}}\text{S}$. (Hint: See the list of prefixes above.)