Potassium nitrate is a type of chemical that dissolves in water. When it dissolves, it separates into two smaller parts called ions: potassium ions and nitrate ions. These ions can carry electrical charges and conduct electricity, which is why we call potassium nitrate an electrolyte.
Electrolytes are important for our body to function properly. They help our muscles and nerves work correctly, and they help us stay hydrated. They are also used in things like batteries and other devices that use electricity.