Answer to Question #115125 in General Chemistry for Jack

Question

With respect to the two redox equations below- assign oxidation numbers in the first equation to identify the reducing reagent and the oxidising reagent. Using oxidation numbers balance the second equation.

ClO- + S2O3^2- + OH- ------} CL- +SO4^2- +H+ (equation 1)
ClO3- +Br- + H+--------} Cl- + Br2+ H2O (equation 2)

Answer 1

ClO- and ClO3- are oxidising reagents.

S2O3^2- and Br- are reducing reagents

2ClO3- +6Br- + 6H+--------} 2Cl- + 3Br2+ 6H2O