Chapter 22, Problem 22.10A

Write balanced net ionic equations for the following reactions:
(a) Dissolution of solid ${\text{Li}}_{\text{2}}\text{O}$ in water
(b) Dissolution of ${\text{SO}}_{\text{3}}$ in water
(c) Dissolution of the amphoteric oxide ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}$ in strong acid
(d) Dissolution of ${\text{Cr}}_{\text{2}}{\text{O}}_{\text{3}}$ in strong base to give $\text{Cr}{\left(\text{OH}\right)}_{\text{4}}{}^{-}$ ions