Chapter 4, Problem 29E

Each of the following compounds contains a metal that can exhibit more than one ionic charge. Name these compounds:

(a) ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}$

(b) ${\text{FeCl}}_{\text{2}}$

(c) ${\text{CrO}}_{\text{3}}$

(d) ${\text{TiCl}}_{\text{4}}$

(e) ${\text{CoCl}}_{\text{2}}\cdot {\text{6H}}_{\text{2}}\text{O}$

(f) ${\text{MoS}}_{\text{2}}$