This is a simple chemical reaction:

2Zn + O₂ → 2ZnO

Zinc oxide is a white powder that is commonly used in a variety of applications, including:

* Sunblocks: Zinc oxide is a common ingredient in sunscreen due to its ability to absorb ultraviolet (UV) radiation.

* Paints and coatings: It provides white pigment and can enhance durability.

* Medical ointments: It helps heal minor burns and skin irritations.

* Rubber production: It acts as a reinforcing agent.