Of these ingredients, name one mixture. Using the flow chart below, explain why you believe that it is a mixture. Materials (Matter) Composed of No Elements more then one (Examples: iron and element Sulfur) "Pure Substance" Yes Yes Substances Compounds No combined Mixtures (Iron(il] sulfide after through (example: Iron and heating] chemical sulfur mixed on "Pure Substance" reaction paper Initially) Baking soda is sometimes called sodium bicarbonate. It contains sodium, hydrogen, carbon and oxygen. Do you think that baking soda was formed by a physical change or a chemical reaction? Support your answer using the flow chart