1. Setup of the SAT II Chem Exam
85 total questions, 1 hour (about 42 s/question)
- All multiple choice, - 1/4th point for every incorrect answer
- if you can narrow down to two choices, then guess otherwise leave blank
- scoring scale from

2. 2017-18 International SAT Administration Dates and Deadlines
SAT Date
SAT Subject Tests Available
Early Registration via Representative
Registration Deadline
Deadline for Changes
December 2, Register
See SAT Subject Tests available on this date
October 18, 2017
November 2, 2017
November 21, 2017
March 10, Register
SAT Subject Tests not offered on this date
January 24, 2018
February 9, 2018
February 28, 2018
May 5, Register
March 21, 2018
April 6, 2018
April 25, 2018
June 2, 2018
April 18, 2018
May 3, 2018
May 23, 2018

3. SAT How To Prepare
DO NOT CRAM. Get your studying done with by the night before. Get a good night’s sleep and have breakfast the morning of the exam.
Actively participate in any and all review classes
April 18, 2018
May 3, 2018
May 23, 2018

4. Introduction To Chemistry
A Motivational Lesson

5. CHEMISTRY
ELEMENT,
COMPOUND
AND
MIXTURE

6. ELEMENT Non-Metal Metal (l) (l) (s) (g) (s)
(g) – gas (l) – liquid (s) - solid

7. Liquids: particles flow past each other but are
still attracted to each other by intermolecular forces
Solids: Crystal lattice (regular pattern), vibration motion only Gases: particles are small and far apart. They travel in a straight line until they hit something, they bounce off without losing any energy, they are far apart from each other They have effectively no attractive forces (NO ATTRACTIONS from intermolecular force in ideal gases. Their speed is directly proportional to the Kelvin temperature (Kinetic-Molecular Theory, Ideal Gas Theory).

8. What is an element ? Element A chemical substance Simplest substance
Cannot be decomposed to a simpler substance
Built up from one type of atoms only

9. Electric and Heat Conductor
Copper Cu
Electric and Heat Conductor
Ductile
Malleable
Shiny

10. Increasing metallic characterHe Li Be B C N O F Ne
Increasing metallic character Na Mg Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
Metals
Metalloids
Nonmetals

11. What is a Compound ?
A Chemical
Consists of 2 or more elements chemically combined
Chemical Bond between the particles

12. Sodium Chloride
Use : Flavor for Food
Constituents : Na , Cl

13. What is a Mixture ?
Substance consisting of 2 or more substances physically combined together
Components : Elements or/and compounds
Components can be separated by physical means

14. Mixtures
Homogeneous Mixture – composition and properties are uniform (sometimes called a solution)
Air – principal components include O2, N2 & CO2
Vodka – principal components are EtOH & H2O
Brass – solid solution of Cu and Zn
Ruby – solid solution of Al2O3 and Cr2O3

15. Mixtures
Heterogeneous Mixture – composition and properties are non-uniform
Chocolate Chip Cookie – chocolate, sugar, dough, etc.
Concrete – cement, sand, aggregate

16. Air– Oxygen, Nitrogen, Carbon dioxide, water vapor etc
Examples of Mixtures
Air– Oxygen, Nitrogen, Carbon dioxide, water vapor etc

17. Components : Lactose, water, proteins, vitamins, minerals etc
Milk
Components : Lactose, water, proteins, vitamins, minerals etc

18. Properties of Matter
Types of matter are distinguished by their properties
There are two categories of properties that concern us:
Physical properties
Chemical properties
If two samples of matter have the same properties, they must be the same substance
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19. Changes in Matter Gas Evaporation Condensation Sublimation Deposition
Physical
Chemical
Gas
Evaporation
Condensation
Sublimation
Deposition
Changes don’t have to be on a macro scale - at the very trace analysis scale can also get changes at ppb (109) and ppt (1012) level
Melting
Liquid
Solid
Freezing

20. Changes in Matter Physical change
Substance changes physical appearance without altering its identity
e.g. changes of state
ice melting to form water

21. Properties of Matter
Physical properties –the identifying characteristics of matter
Some properties :
odor
Colour
compressibility
hardness
melting point
radioactivity
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22. Physical properties METALS NON METALS good conductors of electricity
Ductile
malleable, lustrous
typically: solid
high melting point
good conductors of heat
NON METALS
poor conductors of electricity
not ductile
not malleable
solid, liquid or gas
low melting point
poor conductors of heat
You have already been through the basic trends in the periodic table in your 2nd lecture. These are some general physical and chemical properties, we will look at some of these in some more detail. These are really the 2 categories that concern us: Physical and chemical properties.

23. Changes in Matter H2O  H2 + ½ O2 CHEMICAL H2O(s)  H2O (l)  H2O(g)
Chemical changes (or chemical reactions)
Substances transform into chemically different substances
i.e. identity changes
e.g. decomposition of water
H2O  H2 + ½ O2
CHEMICAL
H2O(s)  H2O (l)  H2O(g)
PHYSICAL