## Chemistry and Chemical Reactivity (9th Edition)

a) $AgCH_3CO_2$ Any cation would fit the criteria. b) $CaS$ Any cation with the exception of alkali metals, and ammonium would fit the criteria. c)$NaOH$ Only cations of alkali metals, $Ba^{2+}, Sr^{2+}$ would fit the criteria. d) $AgCl$ Only cations of $Ag^+, Hg^{2+}, Pb^{2+}$ would fit the criteria. e) $NH_3$ Any strong base and the conjugates of weak Brønsted acids fit the criteria.