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General Chemistry 1 Sections 7-12

General Chemistry 1 Sections 7-12. Dr. Kelly Gallagher 120C Physical Science gallagkr@oneonta.edu. Let’s begin with a bang…. What is chemistry? What is matter made up of? Have you seen an atom? Chemists study how sub-microscopic creates the macroscopic Chemists Make molecules

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General Chemistry 1 Sections 7-12

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  1. General Chemistry 1Sections 7-12 Dr. Kelly Gallagher 120C Physical Science gallagkr@oneonta.edu

  2. Let’s begin with a bang… • What is chemistry? • What is matter made up of? • Have you seen an atom? • Chemists study how sub-microscopic creates the macroscopic • Chemists • Make molecules • Study molecules

  3. Visualizing Molecules • Different ways to represent water… • Some bigger molecules… H2O BPA . CoCl2 SiO2 Puppy?

  4. Visualizing Molecules • A really big one…

  5. Course Information • Class meetings: • Lecture MWF here • Lab once a week in Physical Sciences 203/204 • NO LABS this week- they start Monday • Course Materials: Text, Labs, Goggles, Clickers, Calculator, Composition notebook for lab • Syllabus • Course web site • Online Homework System- OWL • First assignment due in one week (9/2/2009)

  6. 7 Habits of Highly Effective Chemistry Learners • Know the math • Come to class • Be prepared • Ask questions • Study regularly • Apply your knowledge • Write things down • Rest!

  7. Chapter 1- Chemistry Matter on the Atomic Scale • Read Chapter 1 • Do the homework on OWL (due next Wed.) • Next class we start Chapter 2 (Elements and Compounds)

  8. The Periodic Table- It’s 140 This Year!

  9. Chapter 1: Matter and Measurement • Atoms and Elements • Molecules and Compounds • Classification of Matter • Properties of Matter and Measurement • Temperature • Mass • Volume • Unit Analysis Calculations (Monday’s PLL session)

  10. ATOM Smallest unit of matter ELEMENT Contains only 1 type of atom MOLECULE Contains >1 atom connected together COMPOUND Contains >1 atom connected together AND >1 type of element Pure Substances=Elements and Compounds

  11. Classification of Matter

  12. Clicker Question 1 • Which of the following is a pure substance? • Grain alcohol • Sparkling water • 14-carat gold • Chocolate chip

  13. Clicker Question 2 • What is a root beer float? • Compound • Element • Homogeneous Mixture • Heterogeneous Mixture

  14. Let’s ponder the Root Beer Float some more… • Root beer float desconstructed* • Ice cream • Sugar • Cream • Vanilla • Root beer • Carbonated water • Sugar • Root extracts (sassafras, sarsparilla root, liquorice, anise, etc.) *An homage to a great book, Twinkie Deconstructed, by Steve Ettlinger

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