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
 Study molecules
Visualizing Molecules
 Different ways to
 Some bigger molecules…
represent water…
H2O
BPA
CoCl2
.
SiO2
Puppy?
Visualizing Molecules
 A really big one…
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)
7 Habits of Highly Effective Chemistry Learners
1.
2.
3.
4.
5.
6.
7.
8.
Know the math
Come to class
Be prepared
Ask questions
Study regularly
Apply your knowledge
Write things down
Rest!
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)
The Periodic Table- It’s 140 This Year!
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)
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
Classification of Matter
Clicker Question 1
 Which of the following is a pure substance?
a.
Grain alcohol
b.
Sparkling water
c.
14-carat gold
d.
Chocolate chip
Clicker Question 2
What is a root beer float?

a.
b.
c.
d.
Compound
Element
Homogeneous Mixture
Heterogeneous Mixture
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