Mixtures (chp.18)

• What is a mixture?

  A mixture is when 2 or more substances are mingled together but not chemically combined.
• How can mixtures be separated?


  Mixtures can be separated easily.
• Give an example of a mixture where components are clearly visible.

  Sand and water.
• What characterizes a suspension?

  A suspension is formed when insoluble particles are too small or light to sink, remaining suspended in the fluid and still visible.
• What happens to particles in a suspension when the fluid interacts with them?

  The fluid can attack the other particles causing them to break up, making them appear to 'disappear'.
• What is a solution?

  A solution is a mixture of solute in a solvent where the particles are thoroughly mixed together.
• What is a solvent?

  A solvent is a substance that can dissolve another substance.
• What is the difference between dilute and concentrated solutions?

  Dilute solutions have a small amount of solute relative to solvent, while concentrated solutions have a large amount of solute relative to solvent.
• What is a solute?


  A solute is a substance that is dissolved in a solvent.
• What defines a perfect mixture?

  A solution is a perfect mixture of a solute and solvent.
• What are the types of mixtures and their characteristics?

  • **Visible Mixtures**: Components are clearly visible (e.g., sand and water).
  • **Suspensions**: Insoluble particles remain suspended in a fluid and are visible.
  • **Solutions**: Solute is thoroughly mixed in a solvent, forming a perfect mixture.