Name ______________________________ Class ___________________ Date __________________
Chapter 1 & 2 Review
In the space provided, write the letter of the term or phrase that best completes
each statement or best answers each question.
_____ 1. A scientist is working in the lab, with compounds containing carbon.
She is most likely working in the field of
a. inorganic chemistry.
b. theoretical chemistry.
c. organic chemistry.
d. None of the above
_____ 2. A scientist is working with mathematical and computer models to learn
about the principles at work in a chemical reaction. He is working in
the field of
a. theoretical chemistry.
b. physical chemistry.
c. biochemistry.
d. analytical chemistry.
_____ 3. Research that is carried out for the sake of increasing knowledge, such
as research into the properties of a substance, is considered to be
a. applied research.
b. basic research.
c. technological development.
d. None of the above
_____ 4. The smallest unit of matter that retains the properties of that matter is
a. a molecule.
b. a compound.
c. a mixture.
d. an atom.
_____ 5. Which statement best describes an element?
a. any combination of two or more atoms of different types
b. a pure substance made up of only one kind of atom
c. a substance containing only carbon atoms
d. any kind of crystal
_____ 6. Which of the following is an extensive property of matter?
a. boiling point
b. density
c. volume
d. melting point
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Modern Chemistry
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Chapter 1 & 2 Review
Name ______________________________ Class ___________________ Date __________________
Chapter 1 & 2 Review, continued
_____ 7. Which of the following is an intensive property of matter?
a. energy content
b. density
c. volume
d. mass
_____ 8. Which of the following changes is a physical change of matter?
a. water evaporating
b. paper burning
c. a nail rusting
d. a silver spoon tarnishing
_____ 9. Which state of matter is composed of atoms that have lost many of
their electrons?
a. solid
b. liquid
c. gas
d. plasma
_____ 10. Which of the following changes is a chemical change of matter?
a. ice melting to produce water
b. vinegar combining with baking soda to produce carbon dioxide
c. water boiling to produce water vapor
d. liquid silica solidifying to form glass
_____ 11. A homogeneous mixture is one that
a. contains only one element.
b. is uniform in composition.
c. cannot change state easily.
d. acts as a solvent.
_____ 12. Which of the following is an example of a heterogeneous mixture?
a. tap water
b. chunky peanut butter
c. orange-colored sugar water
d. gold ring
_____ 13. What is the difference between a mixture and a compound?
a. All mixtures have a uniform composition.
b. Mixtures can be separated by physical processes.
c. Mixtures are made of at least two different elements.
d. All mixtures are heterogeneous.
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Modern Chemistry
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Chapter 1 & 2 Review
Name ______________________________ Class ___________________ Date __________________
Chapter 1 & 2 Review, continued
_____ 14. Which of the following is a pure substance?
a. air
b. granite
c. water
d. stainless steel
_____ 15. Homogeneous mixtures are also called
a. atoms.
b. solutions.
c. molecules.
d. compounds.
_____ 16. One way to separate the different kinds of matter in a mixture is
through
a. filtration.
b. decomposition.
c. electrolysis.
d. chemical reactions.
_____ 17. In general, which properties are common to elements within a single
group on the periodic table?
a. atomic number and atomic weight
b. chemical properties and ability to bond to other atoms
c. color and luster
d. boiling point and freezing point
_____ 18. The horizontal rows of the periodic table are called
a. periods.
b. columns.
c. groups.
d. families.
_____ 19. Which property would be least helpful in determining whether a
substance is a metal or a nonmetal?
a. conductivity
b. luster
c. ductility
d. state
_____ 20. Noble gases are generally
a. semiconductors.
b. malleable.
c. brittle.
d. unreactive.
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Modern Chemistry
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Chapter 1 & 2 Review
Name ______________________________ Class ___________________ Date __________________
Chapter 1 & 2 Review, continued
_____ 21. Which is an example of a nonmetal?
a. copper
b. phosphorus
c. mercury
d. cadmium
_____ 22. Which of these recorded observations is qualitative, rather than
quantitative?
a. A chemical reaction is complete in 2.3 s.
b. The solid has a mass of 23.4 g.
c. The compound melts at 87.5C.
d. Iron is denser than aluminum.
_____ 23. Which of these terms best describes the following statement? “A
solution of the unknown compound turned litmus paper blue.”
a. hypothesis
b. model
c. quantitative observation
d. qualitative observation
_____ 24. Which of these statements is true of the scientific method?
a. The steps may vary somewhat to suit the experiment.
b. Working scientists rarely use it.
c. Scientists must follow its steps exactly.
d. Scientists rarely publish results of experiments.
_____ 25. An experiment is designed to measure the effect of global temperature
increase on ocean levels. In this experiment, if the ocean level is
compared to the average ocean level over the last 100 years, then the
average ocean level over the last 100 years would be considered
a. a model.
b. a variable.
c. the hypothesis.
d. the control.
_____ 26. A proposed explanation that is based on observations and that can be
tested is known as a(n)
a. principle.
b. experiment.
c. law.
d. hypothesis.
3
_____ 27. The unit cm is used to express
a. length.
b. mass.
c. volume.
d. time.
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Modern Chemistry
4
Chapter 1 & 2 Review
Name ______________________________ Class ___________________ Date __________________
Chapter 1 & 2 Review, continued
_____ 28. The SI base units for time and temperature are
a. hour and degree Celsius.
b. second and degree Celsius.
c. hour and kelvin.
d. second and kelvin.
_____ 29. The conversion factor
a.
b.
c.
d.
1 L would be used to change
10 3 mL
milliliters to liters.
liters to milliliters.
units of volume to units of length.
units of length to units of volume.
3
_____ 30. A sample osf bismuth has a mass of 343 g and a volume of 35.0 cm .
What is the density of bismuth?
a. 0.102 g/cm3
b. 9.80 g/cm3
c. 378 g/cm3
d. 1.20  104 g/cm3
_____ 31. Which of these statements about density is true?
a. Density is proportional to the amount of a substance.
b. Density is expressed in units of mL/cm3 .
c. Density does not change with temperature.
d. Density may be used to help identify a material.
_____ 32. An object’s weight is a measure of
a. the force with which it is attracted by gravity.
b. the pressure exerted on a scale.
c. the amount of material per unit volume.
d. the force causing the object to move.
_____ 33. The SI base unit for mass is the
a. gram.
b. cubic centimeter.
c. meter.
d. kilogram.
_____ 34. Which of these is not an SI base unit?
a. meter
b. pound
c. kelvin
d. ampere
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Modern Chemistry
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Chapter 1 & 2 Review
Name ______________________________ Class ___________________ Date __________________
Chapter 1 & 2 Review, continued
_____ 35. Precision is related to all of these except
a. reproducibility of measurements.
b. range of measurement values.
c. number of significant figures.
d. closeness of a measurement to the accepted value.
_____ 36. A student determined the density of aluminum by averaging the results
of three density calculations. Each value was different, but the average
was equal to the accepted value for aluminum’s density. The results of
this investigation are best described as
a. accurate, but not precise.
b. precise, but not accurate.
c. both precise and accurate.
d. neither precise nor accurate.
_____ 37. The measurement 0.0265 g, rounded off to two significant figures,
would be
a. 0.026 g.
b. 0.027 g.
c. 0.03 g.
d. 0.030 g.
_____ 38. In division and multiplication, the answer should have the same
number of significant figures as the
a. number in the calculation with the fewest significant figures.
b. number in the calculation with the most significant figures.
c. average number of significant figures in the calculation.
d. total number of significant figures in the calculation.
_____ 39. The number of significant figures in the measurement 170.040 km is
a. three.
b. four.
c. five.
d. six.
_____ 40. The dimensions of rectangular solid are measured to be 1.27 cm,
1.3 cm, and 2.5 cm. The volume should be recorded as
a. 4.128 cm3 .
b. 4.12 cm3 .
c. 4.13 cm3 .
d. 4.1 cm3 .
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Modern Chemistry
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Chapter 1 & 2 Review
Name ______________________________ Class ___________________ Date __________________
Chapter 1 & 2 Review, continued
_____ 41. Samples with masses of 0.12 g, 1.8 g, and 0.562 g are mixed together.
The combined mass of the three samples, expressed to the correct
number of significant figures, should be recorded as
a. 2.4 g.
b. 2.48 g.
c. 2.482 g.
d. 2.5 g.
_____ 42. Expressed in scientific notation, 0.0930 m is
a. 93  10 3 m.
b. 9.3  10 3 m.
c. 9.30  10 2 m.
d. 9.30  10 4 m.
23
_____ 43. When 6.02  10
a. 5.5  10 8 .
b. 5.5  105 5 .
c. 5.5  10 7 .
d. 5.5  10 5 3 .
31
is multiplied by 9.1  10
, the product is
Practice (Show all work)
1. State the following measured quantities in the units indicated:
a. 5.2 cm of magnesium ribbon in millimeters
b. 0.049 kg of sulfur in grams
c. 1.60 mL of ethanol in microliters
d. 0.0025 g of vitamin A in micrograms
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Modern Chemistry
7
Chapter 1 & 2 Review
Name ______________________________ Class ___________________ Date __________________
Chapter 1 & 2 Review, continued
e. 500 000 mg in kilograms
2. State the following measured quantities in the units indicated:
a. 150 mg of aspirin in grams
b. 2500 mL of hydrochloric acid in liters
c. 0.5 g of sodium in kilograms
d. 55 L of carbon dioxide gas in kiloliters
e. 35 mm in centimeters
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Modern Chemistry
8
Chapter 1 & 2 Review