WORLD OF CHEMISTRY 3RD EDITION By STEVEN S. ZUMDAHL - Test Bank
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Course
CHEMISTRY TEST BANK
Institution
CHEMISTRY TEST BANK
CHAPTER 3: Chemical Foundations: Elements, Atoms, and Ions
1. What is the most abundant element on the Earth (including the crust, oceans, and atmosphere)?
A.
silicon
B.
oxygen
C.
hydrogen
D.
iron
E.
carbon
ANS: B PTS: 1 TOP: Test: Chapter Test
NOT: worldofchem_2013
2. Wha...
ANS:
a variety of answers are probably acceptable; see book for specific definition
PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013
2. chemistry
ANS:
the science that deals with the materials of the universe and the changes that these materials undergo
PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013
3. scientific method
ANS:
a process of studying natural phenomena that involves making observations, forming laws and
theories, and testing theories by experimentation
PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013
4. natural law
ANS:
a statement that expresses generally observed behavior
PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013
5. hypothesis
ANS:
one or more assumptions put forth to explain observed phenomena
PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013
6. theory
ANS:
a set of assumptions put forth to explain some aspect of the observed behavior of matter
PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013
7. Which of the following is not a step in the scientific method?
A. Make an observation.
B. Formulate a hypothesis.
C. Perform an experiment.
D. Change our results to agree with our hypothesis.
E. Develop a theory (or model).
, ANS: D PTS: 1 TOP: Test: Chapter Test
NOT: worldofchem_2013
8. Which of the following statements is/are true?
I. An observation is something that is witnessed and can be recorded.
II. A theory is an interpretation – a possible explanation of why nature behaves in a
particular way.
III Even though scientific models are simplifications of reality, they are based on
. observations and experiments so they eventually become natural laws.
V. If a theory is disproven, then all of the observations that support that theory are also
disproven.
A. I only
B. II only
C. I, II
D. I, II, IV
E. I, II, III, IV
ANS: C PTS: 1 TOP: Test: Chapter Test
NOT: worldofchem_2013
, CHAPTER 2: Matter
1. The state of matter for an object that has neither definite shape nor definite volume is
A. solid
B. liquid
C. gaseous
D. mixed
E. elemental
ANS: C PTS: 1 TOP: Test: Chapter Test
NOT: worldofchem_2013
2. The state of matter for an object that has a definite volume but not a definite shape is
A. elemental
B. mixed
C. liquid
D. gaseous
E. solid
ANS: C PTS: 1 TOP: Test: Chapter Test
NOT: worldofchem_2013
3. The state of matter for an object that has both definite volume and definite shape is
A. gaseous
B. mixed
C. solid
D. elemental
E. liquid
ANS: A PTS: 1 TOP: Test: Chapter Test
NOT: worldofchem_2013
4. Anything that has mass and volume is called __________.
ANS: matter
PTS: 1 TOP: Test: Chapter Test NOT: worldofchem_2013
Classify each of the following changes as (a) physical or (b) chemical
5. cooking an egg
A. physical B. chemical
ANS: B PTS: 1 TOP: Test: Chapter Test
NOT: worldofchem_2013
6. melting snow
A. physical B. chemical
ANS: A PTS: 1 TOP: Test: Chapter Test
NOT: worldofchem_2013
7. subliming dry ice (CO2)
A. physical B. chemical
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