Dr. Kelly Gallagher

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General Chemistry 1Sections 7-12

• Dr. Kelly Gallagher
• 120C Physical Science
• gallagkr_at_oneonta.edu

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Lets 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

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Visualizing Molecules

• Different ways to represent water

• Some bigger molecules

H2O
.
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Visualizing Molecules

• A really big one

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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)

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7 Habits of Highly Effective Chemistry Learners

1. Know the math
2. Come to class
3. Be prepared
4. Ask questions
5. Study regularly
6. Apply your knowledge
7. Write things down
8. Rest!

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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)

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The Periodic Table- Its 140 This Year!
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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 (Mondays PLL session)

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Pure SubstancesElements and Compounds

• ATOM
• Smallest unit of matter
• ELEMENT
• Contains only 1 type of atom
• MOLECULE
• Contains gt1 atom connected together
• COMPOUND
• Contains gt1 atom connected together AND gt1 type
  of element

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Classification of Matter
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Clicker Question 1

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

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Clicker Question 2

• What is a root beer float?
• Compound
• Element
• Homogeneous Mixture
• Heterogeneous Mixture

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Lets 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