Chemistry defines a pure substance as a material with a fixed composition and distinct chemical properties. By that logic, distilled water qualifies as a pure substance since it consists solely of hydrogen and oxygen in a 2:1 ratio. On the other hand, natural water sources are mixtures containing minerals, salts, and organic matter, which make them impure.
Pure or Impure: The Science Behind Water as a Substance
Chemistry defines a pure substance as a material with a fixed composition and distinct chemical properties. By that logic, distilled water qualifies as a pure substance since it consists solely of hydrogen and oxygen in a 2:1 ratio. On the other hand, natural water sources are mixtures containing minerals, salts, and organic matter, which make them impure.
