PRE-LAB Questions- Physical/Chemical Properties and Change
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Alcohol is volatile. Is this a physical or chemical change?
Water freezes at 32F or 0C. Is this a ph
Chapter 13 Water
Water is Unique
Water has specialized properties
Water Absorbs gases
Water Dissolves Minerals
Water is very important for Life
Where is water located
How much is available
Who has access to it
Water is Unique!
Water has many spec
Chapter 4 Nuclear
The Heart of Matter.
In chapter 3 we discussed the
structure of the atom, in chapter 4
we develop a understanding of how
it (the pieces of the Atom) work
All atoms occur as isotopic
mixtures, with a few odd
PRE LAB Questions- Density
To what property of matter does density belong?
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In what units is density usually expressed?
What quantity (i.e. parameter) has the same numerical value as density, but is unitless?
Boiling point of alcohol solution
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of sodium chloride (NaCI) in water
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The one pan balances in a chemistry laboratory determine weight or
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POST LAB Questions
How does the mass and weight of an object in Saginaw, Michigan compare with the mass and
weight of the same object in Denver, Colorado with respect to mass and weight? Explain.
Chem 102 Chapter 12
Chem. Of Air
Things in Our Air.
Lets take a closer look at the
Outer Space above 110 km
Thermosphere 85-110 km
Mesosphere 50-85 km
Stratosphere (Ozone 22-38)12-50 km
99% of all Air is below 30 km
Humans die above 6 km due t
Chem 102 Chapter 11
Chem. of the Earth
Earth our Crowded Spaceship.
The current Population is close to
approaching 7 Billion.
Do we have enough materials?
Consider availability first.
The earth is divided into three
regions, The Core Mainly Iron and
Preparation for Topics in
A Note to the Student
Problem Notebook: The purchase of a spiral problem notebook is suggested for your work on
these lessons. A notebook that has graph-paper as pages will be especially helpful.
Choosing a Calc
Chem 102 Chap. 1
Everything is made of Chemicals!
How can we begin to understand?
News reports tell of Toxins
Should we be concerned?
How can we make informed
judgements about these problems?
What is Chemistry all about?
How did we get to
The Greek Theory ~ Atoms
Leucippus. 450 BCE Tiny pieces
Democratis no cut
The Law of Conservation of Mass.
Matter is neither created nor
Destroyed by a chemical reaction.
Mass of Products = Mass of
Chem 102 Chapter 3
Atoms and Elements
Daltons Atomic theory that atoms
are hard and indivisible, wasnt
exactly correct. Evidence began to
show matter had electrical
properties, and these properties led
to the unraveling of the atoms
Chem 102 Chapter 5
Molecules Cause the Behavior of
Chemical Formulas represent the
arrangement of atoms in matter.
Ionic & Molecular Compounds are
Two different ways atoms can
combine, ionicly or covalently.
Chem 102 Chapter 5B
The Ties That Bind.
Chemical bonds are the forces
responsible for holding atoms
together, as molecules, or as ions
in ionic crystals.
The variety of chemical compounds
is shaped and determined by the
bonds that can form
Chem 101 Chapter 6
Mass and Volume Relationships
Chemical equations are the short
hand a chemist uses to describe
The sentence carbon when burned
in oxygen releases gaseous carbon
dioxide can be easily represented
Chem 101 Chapter 7
Acids & Bases
Acids and Bases are Chemical
opposites. With very different
Acids turn blue litmus red Bases
turn red litmus blue.
Acids Taste Sour, Bases taste bitter
Acids dissolve metals & release H
(g), Bases feel slippery
Chem 101 Chapter 8
Oxidation & Red.
Burn and unburn reactions
Oxidation & reduction reactions
always occur together.
They are in fact opposite aspects of
a single process.
You cant oxidize without a
corresponding reduction nearby.
When you burn wood, the
Chem 102 Chapter 9
Chemistry of the Carbon Chain.
Carbon forms 4 bonds
Chemicals with a carbon backbone
C-C-C-C-C are called hydrocarbons.
Alkanes are hydrocarbons with only
single bonds between carbon atoms.
See table 3 for
Chem 101 Chapter 10
Giant Molecules! Polymers!
Based on Poly (many) mer(units)
Chemicals with a carbon backbone
Monomers are the individual units that
polymers are made from.
The monomers have a double bond ie
CH2=CH2 which is broken open and the
Chem 102B Lab Schedule
Week of - Jan 12
Locker check-in; Safety Film
Cleaning Power P.119
Measurements P. 1
Phys/Chem Props & Chngs P. 11
Spectra P. 25
Paper Chromatography P. 147
Density P. 19