Answer
See the answer below.
Work Step by Step
a) Overall reaction:
$2\ HCl+NaClO\leftrightarrow H_2O+Cl_2+NaCl$
Net ionic reaction:
$2\ H_3O^++\ Cl^-+ClO^-\leftrightarrow 3\ H_2O+Cl_2$
b) $H_3O^+$ is a stronger acid than $H_2O$, so the equilibrium lies to the right.
