8.1.2 Formulations

• What is a formulation?

  A mixture that has been designed as a useful product.
• How are formulations made?

  Mixing components in carefully measured quantities to ensure the product has the required properties.
• Which three of the following would require a formulation: distilled water, medicines, cleaning agents or paints?

  Medicines, cleaning agents and paints.
• Which four of the following techniques can be used to separate substances: crystallisation, distillation, flame tests, dissolving, chromatography or filtration?

  Crystallisation, distillation, chromatography and filtration.