Question

After balancing the redox equation ClO- + OH- + N2O4 → ClO2-+H2O + NO2-, what are the coefficients, in order from left to right?2, 2, 1, 1, 2, 21, 2, 1, 1, 1, 21, 2, 1, 1, 1, 11, 2, 2, 1, 1, 2

Answer 1

What we need to do to balance the equation:

ClO- + OH- + N2O4 → ClO2- + H2O + NO2-

Is to check that the number of atoms of each element before and after the reaction occurs is the same.

To do this, we could put the following coefficients in each compound: (Remember that we can change the coefficients but not the subscripts)

1 ClO- + 2 OH- + 1 N2O4 → 1 ClO2- + 1 H2O + 2 NO2-

Therefore, the correct answer option is:

1, 2, 1, 1, 1, 2