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Chemistry Notes

Chemistry Notes. States of Matter & Phase Changes. States of Matter. Solids have a definite shape and a definite volume. Solids have very strong intermolecular forces. States of Matter. Liquids have a definite volume, but no definite shape.

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Chemistry Notes

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  1. Chemistry Notes States of Matter & Phase Changes

  2. States of Matter Solids have a definite shape and a definite volume. Solids have very strong intermolecular forces.

  3. States of Matter Liquids have a definite volume, but no definite shape. The particles in a liquid have weaker intermolecular forces than solids.

  4. States of Matter Gases have no definite shape or volume. Gases have the weakest intermolecular forces.

  5. Phase Changes freezing – the change in state from a liquid to a solid melting – the change in state from a solid to a liquid

  6. Phase Changes condensation – the change in state from a gas to a liquid boiling – the change in state from a liquid to a gas with heat evaporation – the change in state from a liquid to a gas without heat

  7. Phase Changes sublimation – the change in state from a solid directly to a gas ex) dry ice

  8. Add to the back of the hard copy.Add to the bottom of the Word Document.

  9. Element Cannot be separated into any simpler form.Made of 1 kind of atomex. Anything on Periodic TableO, Na, Au, W, N, etc.

  10. CompoundMade of 2 or more kinds of atoms CHEMICALLY combined.Has physical and chemical properties different than original elements.Signified by a chemical formula.Ex. H2O, CO2, C6H12O6

  11. Mixture2 or more elements of compounds mixed together PHYSICALLYEach part keeps it’s own chemical identity

  12. Heterogeneous Mixture- Different throughout- ex. Muddy water, iron/sand/salt mixture

  13. Homogeneous Mixture- the same throughout- ex. Air, salt water, brass

  14. Quick Check for understanding

  15. Which letter or letters is an element?

  16. Which letter or letters is a compound?

  17. Which letter or letters is an mixture?

  18. Use the remaining class time to:- Finished element and symbol list- Organize your notes for tomorrow.- Finish Gizmo Lab answers and quiz.

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