# How do we represent the thermal decomposition of potassium chlorate to give potassium hypochlorite and dioxygen gas?

$K C l {O}_{3} \left(s\right) + \Delta \rightarrow K C l O \left(s\right) + {O}_{2} \left(g\right) \uparrow$
With suitable catalysis, $K C l O$ can be further reduced to $K C l$, and more oxygen given off. It is thus a convenient source of oxygen gas that you don't have to store in a bottle. Potassium chlorate is present in many fireworks, and some very zippy experiments can be done in the lab.