This is a chemical reaction that goes through multiple steps.

NaCl (sodium chloride) breaks down into Na and Cl2 (chlorine gas).Cl2 reacts with KClO3 (potassium chlorate) to form O2 (oxygen gas) and KCl (potassium chloride).ZnO (zinc oxide) reacts with O2 to form ZnCl2 (zinc chloride).