(Solved): 3. Identify each of the following reactions as a precipitation reaction, an acid-base reaction, a c ...

3. Identify each of the following reactions as a precipitation reaction, an acid-base reaction, a complexation reaction, or an oxidation-reduction reaction. Explain your classifications. a. \( \mathrm{Zn}(s)+2 \mathrm{AgNO}_{3}(a q) \rightarrow \mathrm{Zn}\left(\mathrm{NO}_{3}\right)_{2}(a q)+2 \mathrm{Ag}(s) \) b. \( \mathrm{HCl}(a q)+\mathrm{AgNO}_{3}(a q) \rightarrow \mathrm{AgCl}_{(s)}+\mathrm{HNO}_{3}(a q) \) c. \( \mathrm{H}_{2} \mathrm{SO}_{4}(a q)+2 \mathrm{CH}_{3} \mathrm{NH}_{2}(a q) \rightarrow\left(\mathrm{CH}_{3} \mathrm{NH}_{3}\right)_{2} \mathrm{SO}_{4}(a q) \) d. \( \mathrm{CuSO}_{4}(a q)+4 \mathrm{NH}_{3}(a q) \rightarrow \mathrm{Cu}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{SO}_{4}(a q) \) e. \( 4 \mathrm{Fe}(s)+3 \mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{Fe}_{2} \mathrm{O}_{3}(s) \)