One of the concerns in using ClO2 as a disinfectant is that the carcinogenic chlorate ion (ClO3-) might be a by-product. It can be formed from the following reaction:
ClO2(g) → ClO3-(aq) + Cl-(aq)
Balance the equation for the decomposition of ClO2. (Use the lowest possible coefficients. Include states-of-matter at 25°C and 1 atm in your answer.)