Chapter 15, Problem 10PE

Using only the periodic cable, choose the stronger acid of each pair: (a) ${\text{H}}_{\text{2}}\text{Se or HBr,}$ (b) ${\text{H}}_{\text{2}}{\text{Se or H}}_{\text{2}}\text{Te,}$ (c) ${\text{H}}_{\text{2}}{\text{O or H}}_{\text{2}}\text{S}\text{.}$