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Elements, Compounds & Mixtures Spring 2012.Day 2


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Elements, Compounds & Mixtures Spring 2012.Day 2

  1. 1. You Will Need: • Pencil, Colored pencils, Log #3 • Elements, Compounds & Mixtures – 1 sheet 2 sides – Part 2 Bookshelf • Elements, Compounds and Mixtures – 1 sheets 2 sides – Part 1 – Picked up Friday, Mar. 30th • Textbook – Open to P.T.- Pg. 196-197
  2. 2. • New Grades have been posted for the 4th quarter.• Retakes for Quiz #2 on STAR Cards 31-60 – Tomorrow only• STAR Cards 61-101 – Due Friday, April 13th (on Learning Point)• Quiz #3 on Cards 61-101 – Friday, April 13th• STAR Testing starts next week on Tuesday
  3. 3. • What families make up the Transition Metals?• Where would I find the Halogens on the P.T.?• What is the valence of Silicon?• What subatomic particle determines the charge of the atom?• When an atom is “charged”, what do we call this particle?
  4. 4. 1. How are Elements and Compounds different?• How are Elements and Compounds the same?• Why are mixtures not “pure”?• Name any 3 ways to separate a mixture?• What does having a “set ratio” mean for compounds?• If I am looking at B10, B11 and B12, how
  5. 5. • If I have dissolved 3.5 mL of HCl in a solution containing 165 mL of H2O, which component of this mixture is the solute and which is the solvent? How do you know?• Give an example of a heterogeneous mixture.• Give an example of a homogeneous mixture.• How are these two types of mixtures similar?
  6. 6. • KNO3 = element, compound or mixture?• Bronze = element, compound or mixture?• Hamburger = homogeneous or heterogeneous mixture? Why?• What is the valence of Na and what family does this element belong to?• What is the valence of Barium?• Which family is the most reactive nonmetals on the P.T.? Why?
  7. 7. • A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements.• All compounds are molecules but not all molecules are compounds. Covalent Bond
  8. 8. • A pure substance• A substance made up of atoms from two or more different bonded elements.• SPECIFIC RATIO Ionic Bond
  9. 9. • A combination of two or more substances blended together• No set ratio of ingredients
  10. 10. • Homogeneous: 2 or more things evenly blended and disappear into each other.• Solute – Smaller quantity• Solvent – Larger quantity• Solution – a homogeneous mixture
  11. 11. • Heterogeneous: 2 or more things put together• Individual components visible• NO SET RATIO.
  12. 12. 1. We know the definition of Element, Compounds & Mixtures2. What do their particles look like?
  13. 13. Compound
  14. 14. Element
  15. 15. Mixture
  16. 16. Element
  17. 17. Compound
  18. 18. Can you create your own?1)2 different samples of Elements2)2 different samples of Compounds3)2 different samples of Mixtures A. Mixture of Elements, B. Mixture of Compounds or C. Mixture of Elements and Compounds
  19. 19. • Materials Managers: Pick up one supply bag for your table• Separate and Layout 6 small zip lock bags labeled, ELEMENT, COMPOUND, MIXTURE• Unload screws, bolts and washers in the middle of the table.
  20. 20. • Build: 2 examples of each• Your table should have: § 2 diff. examples of Element Particles § 2 diff. examples of Compound Particles § 2 diff. examples of Mixtures § Mixture of Elements § Mixture of Compounds § Mixture of Elements and Compounds § Get a Signature from Mrs. M.
  21. 21. • Complete Elements, Compounds & Mixtures– Due tomorrow• Retakes for Quiz #2 tomorrow at lunch and Wednesday before school only• STAR Cards 61-101 – Due Friday w/ a quiz