CHEMISTRY UNIT I REVIEW
For the test on Monday, November 16
This review is due on Friday
The test is open note and you can use your laminated periodic table. It will consist of a variety of problem
types and a lab practical.
Identify lab equipment by name and function
Sample questions:
1. What is this called?
2. Which one of these two will give you a more
precise measurement of volume?
Identifying & Measuring Matter
Sample Questions:
3. What is the definition of matter?
4. What is matter composed of? (Be as specific as you can)
5. What is the difference between a homogeneous mixture and a heterogeneous mixture?
6. What is the difference between an element and a compound? Give an example of each.
7. How would you classify these examples of matter: diamond, water, granite?
8. What happens to matter as it approaches absolute zero?
1 9. What is dark matter? What evidence do we have for its existence?
for this problem. At this point you can use your calculator to get the answer: 2.3 meters.
Dimensional Analysis
2.5 yd
3 ft
x
Sample Questions
1 yd
x
12 in
1 ft
x
2.54 cm
1 in
x
1m
100 cm
=
m
Using this table, answer the questions below. You must show all work AND units.
English and Metric Conversion Table
12 inches = 1 foot
3 feet = 1 yard
16.5 feet = 1 rod
5280 feet = 1 mile
40 rods = 1 furlong
6 feet = 1 fathom
1 gallon = 231 inch3 ‡
16 ounces = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon
English to metric conversion:
1 kilometer = 1000 meters
1 hectometer = 100 meters
1 dekameter = 10 meters
10 decimeters = 1 meter
100 centimeters = 1 meter
1000 millimeters = 1 meter
1 milliliter = 1 centimeter3
1000 milliliters = 1 liter
2.54 centimeters = 1 inch ‡
*For the most part, the equivalencies in this table are exact and therefore will not affect the
number of significant figures in the answer to the problems in this chapter. The exceptions are marked with a
‡.
metric abbreviations
km
kilomenter
hm
hectometers
Use only the equivalencies listed in the above table .
dam
dekameters
m
meters
dm
decimeters
cm
centimeters
mm
millimeters
mL
milliliters
L
liters
9. Problems
How many centimeters in 12 kilometers?
4. How many rods will equal 247 inches?
5. How many centimeters in 34.2 decimeters?
A horse
raceinis3 55.0
furlongs. How many yards is that?
10.6.How
many feet
hectometers?
7. How many ounces are in 1.00 gallon?
8. A "Five K Race" is 5.00 kilometers long. How many miles is that?
11. How Square
many kilometers
long is with
a 3.2one
mile race?
units are squares
unit along each side. Thus 1 square foot
equals 1 foot times 1 foot.
Cubic units are cubes of one unit
along each
of the
three dimensions. Thus
Structure
of the
Atom
1 cubic foot equals 1 foot times 1 foot
Sample Questions
times 1 foot.
12. What are the three main parts of an atom? What are their charges? What are their masses?
Draw a picture to show how they are arranged.
Sample Problem 3 How many square feet in 238 square inches?
Write square feet as ft2 and write square inches as in2. Remember that units must
cancel and that, from algebra, an "X2" on top will cancel with two "X's" on the bottom. Therefore:
Solution
Step 1 Start with 238 square inches.
238 in 2 x
?
Step 2 Multiply by "1 foot over 12 inches".
2 13. What number on the periodic table tells you the identity of the atom?
14. How do you solve for the number of neutrons in an atom? How many neutrons in Halfnium (Hf)?
15. Who determined that atoms have a solid nucleus? How was this observed?
Periodic Table Trends
Sample Questions
16. Why is the periodic table called the Periodic table?
17. What patterns correspond to groups of the periodic table? (Be specific)
18. What is an ion? What determines how an element will form an ion?
19. What cation is group 2A likely to form? Why?
20. Point to the location of these groups/periods on the Periodic table: Alkali Metals, Alkaline Earth
Metals, Transition Metals, Halogens, Noble Gases, Actinides, Lanthanides.
Lab Practical Preparation
Sample tasks
-
Identify the metal atoms in a solution based on the flame test
Observe a change and determine if it is physical or chemical and be able to explain why
Determine the density of an item as accurately as possible
Calculate percent error
3