1. A _______________ results in the change in the composition of substances.
A. chemical change
B. physical change
C. change in state
D. phase transition
E. all of the above
2. A mixture of sugar and water is
A. an element
B. a compound
C. a heterogeneous mixture
D. a solution
E. Both C and D
3. Matter is anything that has:
A. mass and weight
B. volume and occupies space
C. mass and temperature
D. mass and occupies space
E. volume and a definite state
4. Which of the following is a pure substance that can be broken down by various chemical
means into two or more simpler substances?
A. mixture
B. atom
C. element
D. compound
E. homogeneous matter
5. What is the smallest particle of an element that has the properties of that element?
A. atom B. molecule C. proton D. ion E. formula unit
6. Express the result of the following calculation with the appropriate number of significant
figures: 0.235 + 128.55 - 102.1 =
A. 26.685
B. 26.69
C. 26.7
D. 27
E. 30
7. Which of the following measurements has the fewest significant figures?
A. 10.0 cm
B. 120. mL
C. 3.58 x 103 kg
D. 0.0380 pounds
E. all have the same number of significant figures.
8. A graduated cylinder will measure up to 500 mL and has divisions in 10 mL increments.
Which of the following measurements has the appropriate number of significant figures for a cylinder of this type?
A. 332.85 mL
B. 200.5 mL
C. 2.25 mL
D. 382. mL
E. all of these
9. Which of the following is the SI unit for mass?
A. pound B. kilogram C. gram D. kelvin E. mole
10. Express the following measurement in scientific notation : 0.000213 in:
A. 2.13 x 10-3 in
B. 2.13 x 103 in
C. 2.13 x 10-4 in
D. 2.13 x 104 in
E. none of these
11. 1.36 kL = ______________ mL
A. 1.36
B. 1.36 x 10-6
C. 1.36 x 103
D. 1.36 x 106
E. 1.36 x 109
12. 252 mm = ______________ pm (pm = "picometer" = 10-12 m )
A. 2.52 x 10-12
B. 2.52 x 10-13
C. 2.52 x 1017
D. 2.52 x 109
E. 2.52 x 1011
13. 2.5 L = _______________mm3 (Remember 1 mL
º 1 cm3)A. 2.5 x 109
B. 2.5 x 10-9
C. 2.5 x 106
D. 2.5 x 10-6
E. 2.5 x 103
14. Which ion below is correctly paired with its name?
Name ion
A. phosphate ion PO42-
B. sulfide ion S2-
C. carbonate ion CO33-
D. nitrate ion NO2-
E. hydroxide ion H3O+
15. Which element’s symbol below is correctly paired with its name?
Name Symbol
A. potassium P
B. phosphorus K
C. tin Sn
D. arsenic Ar
E. manganese Mg
16. The element, iron, belongs to the group of elements called:
A. halogens
B. alkali metals
C. alkaline earth metals
D. transition metals
E. rare earth elements
17. Which of the following elements is a nonmetal?
A. K B. Bi C. Br D. Er E. Zn
18. The horizontal rows of the periodic table are called :
A. groups B. families C. epochs D. units E. periods
19. As the temperature of a common substance decreases,
A. the mass of the substance remains unchanged.
B. the density of the substance increases.
C. the volume of the substance increases.
D. A and B are true
E. A, B, and C are true.
20. A flask contains 2.00 L of CCl4. If CCl4 has a density of 1.60 g/mL, what is the mass of
the CCl4 in the flask?
A. 1.60 x 103 g
B. 3.20 g
C. 3.20 x 103 g
D. 8.00 x 102 g
E. 822 g
21. Which of the following represents the lowest temperature?
A. 100°C B. 100° F C. 100 K D. 0° F E. 0° C
22. A mixture is prepared from 32.8 g of salt, 51.5 g of flour, and 720 mg of baking soda.
What is the percent by weight of the flour in the mixture?
A. 60.6 % (w/w)
B. 61.1 % (w/w)
C. 38.6 % (w/w)
D. 6.40 % (w/w)
E. 16.5 % (w/w)
23. Seawater is about 3.50 % salt by mass and has a density of 1.03 g/mL. What is the mass
of salt in 525 mL of seawater?
A. 17.8 g
B. 18.9 g
C. 178 g
D. 189 g
E. 541 g
24. A cubic box measures 10.8 cm on an edge. What would its mass be (in pounds) if it were
filled with ethanol which has a density of 0.789 g/mL?
A. 9.93 pound
B. 3.87 pound
C. 5.63 pound
D. 2.19 pound
E. 3.52 pound
25. George is working on a reaction in lab that uses 2.50 grams of a CO2 per minute. How
many kilograms of CO2 will George need for a 3 hour lab period?
A. 4.50 x 102 kg
B. 4.50 x 10-1 kg
C. 5.00 x 101 kg
D. 1.25 x 10-1 kg
E. 1.25 x 102 kg
26. One Blueberry Poptart (mass = 52 grams) contains 10% of the Recommended Daily
Allowance(RDA) of iron. If the RDA of iron is 18 mg. What is the percent by weight of
iron in a Blueberry Poptart?
A. 3.5 x 10-3 % (w/w)
B. 2.9 x 10-1 % (w/w)
C. 2.9 x 10-3 % (w/w)
D. 1.8 x 10-3 % (w/w)
E. 35 % (w/w)
27. Below are some older units of length:
1 furlong = 40.0 rods
1 rod = 16.5 feet
1 fathom = 6.00 feet
If a river were 3.2 fathoms deep, what distance would that be in furlongs?
A. 2.2 x 10-1 furlong
B. 3.5 x 102 furlongs
C. 1.3 x 102 furlongs
D. 2.9 x 10-2 furlong
E. 7.9 furlongs