TEST IS ON MONDAY!!!!! TEST IS ON MONDAY!!!! TEST IS ON MONDAY!!!! (01/25/2010)
TEST IS ON MONDAY!!!!! TEST IS ON MONDAY!!!! TEST IS ON MONDAY!!!! (01/25/2010)
STUDY GUIDE:
This test is NOT going to be a measure of how well you can memorize key terms... it is going to test you on how well you can APPLY the information to different scenarios and problems. For example, I might give you an object and have you describe the object using 7-9 key terms.
EXAMPLE: I might ask you to list (using key terms) 5 characteristic properties of water.
EXAMPLE: I might ask you this, "Sugar is a pure substance, therefore what else do you know? (4-5 key terms)
EXAMPLE: I might give you the word "SALT WATER" and ask you to write 7 facts based on key terms.
KEY TERMS: define, give an example, and apply to a scenario
element weight
molecule Chemistry
mass volume
density Substance
atom compound
chemical formula mixture
matter chemical bond
heterogeneous mixture
physical property physical change
chemical property chemical change
International System of Units homogeneous mixture
extensive properties intensive properties
Four states of matter pure substances
characteristic properties boiling point
melting point filtration
oxidation evaporation
endothermic change exothermic change
chemical energy thermal energy
temperature pure
Law of Conservation of Mass ratio
property tarnishing
combustion electrolysis
You will need to know the following:
1. Rules for changing from standard notation to scientific notation
2. Rules for changing from scientific notation to standard notation
3. Rules for adding, subtracting, multiplying and dividing in scientific notation.
4. Rules for counting number of sig figs
5. Rules for adding, subtracting, multiplying and dividing with sig figs..
6. How to round to the correct number of sig figs
Odds and Ends:
1. Density of "ocean" water
2. Density of at least 2 planets
3. difference between weight and mass
4. Examples for all key terms
5. Density of pure water
6. Volume = L X W X H
7. Formulas for density (d=m/v) or (m= d x v) or (v = m/d)
8. 3 main principles of density (powerpoint)
9. 1 mL = 1 cm3
10. How to calculate volume of an irregular shaped object
11. What do "homo" and "hetero" mean?
12. What is the formula for sugar?
13. What is the formula for salt?
14. Symbol for density
15. SI unit for mass (according to book)
16. SI unit for volume (according to book)
17. What does the prefix endo mean?
18. What does the prefix exo mean?
19. Formula for Sugar
20. Formula for Salt
If object has a density > than 1.00 g/mL it will sink in water and if it is < than 1.00 g/mL it will float in water.
This test is NOT going to be a measure of how well you can memorize key terms... it is going to test you on how well you can APPLY the information to different scenarios and problems. For example, I might give you an object and have you describe the object using 7-9 key terms.
You will also be required to compare and contrast key terms with each other.
There will be density problems... you need to know the formula and how to rearrange it to calculate mass and volume. (See number 7 above).
EXTENSIVE VS INTENSIVE -
Another way of separating kinds of properties is to think about whether or not the size of a sample would affect a particular property. No matter how much pure copper you have, it always has the same distinctive color. No matter how much water you have, it always freezes at zero degrees Celsius under standard atmospheric conditions. Methane gas is combustible, no matter the size of the sample. Properties, which do not depend on the size of the sample involved, like those described above, are called intensive properties. Some of the most common intensive properties are; density, freezing point, color, melting point, reactivity, luster, malleability, and conductivity.
Extensive properties are those that do depend on the size of the sample involved. A large sample of carbon would take up a bigger area than a small sample of carbon, so volume is an extensive property. Some of the most common types of extensive properties are; length, volume, mass and weight.
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