${\mathsf {Ca(ClO)_{2}+4\ HCl\ {\xrightarrow {\ }}\ CaCl_{2}+2\ H_{2}O+2\ Cl_{2}\uparrow }}$

{\displaystyle {\mathsf {Ca(ClO)_{2}+4\ HCl\ {\xrightarrow {\ }}\ CaCl_{2}+2\ H_{2}O+2\ Cl_{2}\uparrow }}}