(1) $2KMnO_4+16HCl\to 2KCl+2MnCl_2+5Cl_2+8H_2O$
(2) $3Cl_2+6KOH\buildrel{{t^o}}\over\to 5KCl+KClO_3+3H_2O$
(3) $KClO_3+6HCl\to KCl+3Cl_2+3H_2O$
(4) $2KCl\buildrel{{đpnc}}\over\to 2K+Cl_2$
(5) $Cl_2+H_2\buildrel{{t^o}}\over\to 2HCl$
(6) $Fe+2HCl\to FeCl_2+H_2$
