Chapter 4, Problem 4.78SP

Predict whether a precipitation reaction will occur when aqueous solutions of the following substances are mixed. For those that form a precipitate, write the net ionic reaction.
(a) $\text{NaOH}+{\text{HClO}}_{\text{4}}$  (b) ${\text{FeCl}}_{\text{2}}+\text{KOH}$
(c) ${\left({\text{NH}}_{\text{4}}\right)}_{\text{2}}{\text{SO}}_{\text{4}}+{\text{NiCl}}_{\text{2}}$  (d) ${\text{CH}}_{\text{3}}{\text{CO}}_{\text{2}}\text{Na}+\text{HCl}$