The reaction of zinc and oxygen is a classic example of a combustion reaction. Here's a breakdown:

Reactants:

* Zinc (Zn): A silvery-grey metal.

* Oxygen (O₂): A colorless, odorless gas.

Products:

* Zinc Oxide (ZnO): A white powder.

Reaction Equation:

2 Zn (s) + O₂ (g) → 2 ZnO (s)

Explanation:

* When zinc metal is exposed to air, it reacts with oxygen in the presence of moisture.

* This reaction releases heat and light, which is why you might observe a glow or even a small flame if the reaction is vigorous.

* The resulting zinc oxide (ZnO) forms a protective layer on the surface of the zinc, preventing further oxidation.

Observations:

* You'll see a white, powdery substance forming on the surface of the zinc.

* Depending on the conditions, the reaction may generate heat and light.

Applications:

* Zinc oxide is widely used in various applications, including:

* Paints and pigments: For its white color and durability.

* Rubber: As a reinforcing agent.

* Cosmetics: As a sunscreen ingredient.

* Medicine: In ointments and lotions.

Let me know if you'd like more information on any of these aspects!