* Decomposition Reaction: A single reactant breaks down into two or more products.

In this case, potassium chlorate (KClO3) is the single reactant that decomposes into potassium chloride (KCl) and oxygen gas (O2).

Chemical Equation:

2KClO3 → 2KCl + 3O2

Explanation:

* Reactants: 2 molecules of potassium chlorate (KClO3)

* Products: 2 molecules of potassium chloride (KCl) and 3 molecules of oxygen gas (O2)

This reaction is also considered an oxidation-reduction reaction because:

* Oxidation: Oxygen atoms in KClO3 gain electrons (are reduced) to form O2.

* Reduction: Chlorine atoms in KClO3 lose electrons (are oxidized) to form KCl.