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Jumpstart. Which of the following is/are example/s of a pure substance? Elements, Compound, Pure water, Carbon dioxide Which of the following is/are example/s of a mixture? Hydrogen chloride, Pure water, Silver, Air

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Jumpstart

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  1. Jumpstart Which of the following is/are example/s of a pure substance? Elements, Compound, Pure water, Carbon dioxide Which of the following is/are example/s of a mixture? Hydrogen chloride, Pure water, Silver, Air Perform the following conversion: 3.9 m/s into mi/hr (1 m = 3ft, 1 mi = 5280 ft)

  2. Target:I can classify changes into two groups: physical changes or chemical changes Finish CN-S-2Q Phases and Changes Q’s Summary

  3. Phases of Matter • Liquid • Definite volume • Indefinite shape • Atoms vibrating more than • a solid • Atoms close together, but • can move past each other • Solid • Definite volume • Definite shape • Atoms barely vibrating • Atoms packed close • Gas • Indefinite volume • Indefinite shape • Atoms vibrating a lot • Atoms very far apart • Plasma • High temperature state • Atoms loose most of • their electrons

  4. Phases of Matter Liquid Solid Gas

  5. Phase Changes Solid  Liquid Melting

  6. Phase Changes Liquid  Solid Freezing

  7. Phase Changes Liquid  Gas Vaporizing

  8. Phase Changes Gas  Liquid Condensing

  9. Phase Changes Solid  Gas Sublimation

  10. Phase Changes Gas  Solid Deposition

  11. Physical Changes A physical change involves a change in one or more physical properties, but no change in the components that make up the substance. IT IS STILL THE SAME SUBSTANCE after a physical change.

  12. Chemical Changes A chemical change involves a change in the components that make up the substance. IT IS NOT THE SAME SUBSTANCE after a chemical change.

  13. Physical Change Chemical Change • Melting • Vaporizing • Evaporating • Freezing • Tearing • Grinding • Cutting • Combustion (burning) • Rusting • Other chemical Rxs • - color change • - gas given off • - product formed Phase Changes

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