the following reactions 2K(s) +Br2(l) --> 2KBr (s) AgNO3 (aq) + NaCl (aq) -->AgCl (s) + NaNO3 (aq) HCl (aq) + KOH (aq) --> H2O (l) + KCl (aq) are all examples of? a. precipitation reactions b. redox, precipitations, and acid-base, respectively c. precipitation (two) and acid-base reactions, respectively d. redox reactions e. none of these