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Ppoint Solutions&Mixtures

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  • 1. Mixtures and Solutions Can You See The Phases?
  • 2. What Is A Mixture? A mixture is made of 2 or more types of atoms that are NOT chemically combined together. Mixtures can take many forms: 2+ Solids 2+ Liquids 2+ Gases ANY combination of solids, liquids & gases
  • 3. Mixtures of Solids
  • 4. Mixtures of Liquids
  • 5. Mixtures of Gases
  • 6. Types Of Mixtures There are 2 major types of mixtures: Heterogeneous Homogeneous Means “different” Means “the same” You can see the You cannot see different parts the different parts (phases) of the (phases) of the mixture easily mixture
  • 7. Heterogeneous Mixtures
  • 8. Homogeneous Mixtures
  • 9. Which Kind of Mixture? Classify each type of mixture as: Heterogeneous Homogeneous Heterogeneous Homogeneous Heterogeneous
  • 10. Solutions A solution is a special type of mixture. A solution is a homogeneous mixture that combines a solute and a solvent. A solution involves one substance dissolving in another substance, which is usually a liquid.
  • 11. Solutions A solution is a special type of mixture. A solution is a homogeneous mixture that combines a solute and a solvent. Solute Solvent The solid part that The liquid part that gets dissolved. does the dissolving. e.g. salt, sugar e.g. water
  • 12. Solutions A solution is a special type of mixture. A solution is a homogeneous mixture that combines a solute and a solvent. Solute Solvent The solid part that The liquid part that gets dissolved. does the dissolving. e.g. salt, sugar e.g. water
  • 13. How To Make A Solution Solute + Solvent = Solution Salt Water Salt Solution
  • 14. Solubility We can measure how easily a solute will dissolve in a certain solvent. This measurement is called solubility. HIGH Solubility LOW Solubility The solute dissolves The solute does not quickly & easily dissolve easily e.g. salt in water e.g. sand in water
  • 15. Dilute vs. Concentrated We can add a LITTLE or a LOT of solute! For example, putting spoonfuls of sugar into a cup of tea… A solution with only a small amount of solute is called a dilute solution.
  • 16. Dilute vs. Concentrated We can add a LITTLE or a LOT of solute! For example, putting spoonfuls of sugar into a cup of tea… A solution with a large amount of solute is called concentrated.
  • 17. Saturated Solutions Eventually, a solvent can’t hold anymore! A saturated solution CANNOT hold any more solute at a certain temperature.
  • 18. Keep Going! But, by heating a solvent up, we can make it hold even more solute than normal. A super-saturated solution contains more solute than it can normally dissolve. Heat It!
  • 19. Any Questions?