This test, therefore, is specific to sodium chloride. Place several pea-sized portions of the unknown solid in a test tube along with 5 mL of water. Heat in a hot water bath held at about 60 C. No marked improvement in solubility suggests that the unknown may be sodium chloride. This test may be used for any unknown that is soluble in water. In the following table specify your unknowns.
Sugar is a chemical, but it is also a food.
One of the hopes of a future colony on Mars is to tap into its resources for commercial development.