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What is a mixture?

What is a mixture?. Mixtures are two or more substances put together but NOT chemically combined. Characteristics of Mixtures. Made of different components Components of a mixture retain their properties May be separated by physical methods. Homogenous Mixtures.

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What is a mixture?

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  1. What is a mixture? Mixtures are two or more substances put together but NOT chemically combined.

  2. Characteristics of Mixtures • Made of different components • Components of a mixture retain their properties • May be separated by physical methods

  3. Homogenous Mixtures Appear the same throughout but can be separated by physical means

  4. Homogenous Mixtures milk Kool-Aid Vanilla ice cream

  5. Heterogenous Mixtures A mixture that does not have the same composition throughout and are often composed of large pieces that are easily separated by physical means

  6. Heterogenous Mixtures gravel Chex mix salad

  7. What are "Pure" substances? Substances are made up of one kind of material with a definite chemical composition and properties

  8. Compounds Elements What are pure substances? copper Copper sulfate

  9. Elements • Made up of only one kind of atom and are found on the Periodic Table • Cannot be broken down into anything simpler

  10. Examples of Elements copper mercury zinc

  11. Compounds • Made of two or more elements that have chemically combined • Can only be separated by a chemical reaction Copper sulfate = CuSO4 Sodium bicarbonate = NaHCO3

  12. More examples of compounds Sugar = C6H12O6 Table salt

  13. chlorine • Substance Element

  14. water • Substance compound

  15. soil • Mixture  heterogeneous

  16. sugar water • Mixture  homogeneous

  17. oxygen • Substance Element

  18. carbon dioxide • Substance compound

  19. rocky road ice cream • Mixture  heterogeneous

  20. alcohol • Substance compound

  21. pure air • Mixture  homogeneous

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