## Chemistry and Chemical Reactivity (9th Edition)

a) Autoionization: $2\ NH_3\leftrightarrow NH_4^++NH_2^-$ b) By analogy with water, the strongest acid is $NH_4^+$, and the strongest base is $NH_2^-$. c) Since HCl is a stronger acid than NH4+, it should be mostly ionized and the solution should be a strong electrical conductor. d) Reaction: $O^{2-}+NH_3\leftrightarrow NH_2^-+OH^-$ Since O2- is a stronger base than NH2-, the reaction should favor the products at equilibrium.