The anti-knocking agents in petrol stop your car backfiring. Na Na is short for the latin word natrium. In some countries sodium is called natrium. The atomic number of sodium is 11. The chemical name for salt is sodium chloride and the formula is NaCl.
Sugar is a carbohydrate.
It's made from carbon, hydrogen and oxygen atoms. Rice contains carbohydrate. People need the right balance between sodium and another metal, for the healthy functioning of their nerves. Our nerves depend on the balance of sodium and potassium in our bodies. When sodium reacts with water it forms sodium hydroxide and hydrogen gas.