Question

Question 8 1.5 pts Given the partial equation: H2O2 + ClO2-02+CIO,, balance the reaction in basic solution using the half-reaction method and fill in the coefficients. The missing blanks represent H20, H , or OH, as required to balance the reaction. Enter the coefficients as integers, using the lowest whole numbers. If the coefficient for something is "1", make sure to type that in and not leave it blank. Enter only the coefficients. H2O2+ CIO2 + O2+ CIO +

Answer 1

half reaction is ClO2 --> ClO2- to balance charge we add e-

ClO2 + e- --> ClO2- .................(1)

other half is H2O2 --> O2 , to balance H we add H+

H2O2 --> O2 + 2H+ , we add same amount of OH- both sides

H2O2 + 2OH- ---> O2 + 2H2O ( H+ and OH- combine to form H2O )

H2O2 + 2OH- --> O2 + 2H2O + 2e- ..............................(2)

we add (1) and (2) such that e- term cancels out. Hence 2 times eq (1) + eq (2)

1 H2O2 + 2 ClO2 + 2 OH^ -  --> 1 O2 + 2 ClO2^ - + 2 H2O