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Which of the properties listed below is a characteristic of a liquid but not of a gas?
A. It has the ability to flow.
B. It maintains its volume in an open container.
C. Its molecules are constantly in motion.
D. Its volume varies depending on temperature. -ANSWERS-B
A 0.100 m3 chamber is filled with oxygen gas at standard conditions (101 kPa at 273 k).
Assuming ideal conditions and behavior, what will be the pressure of the gas in the
chamber after it is heated to 819 k?
A. 34 kPa
B. 51 kPa
C. 202 kPa
D. 303 kPa -ANSWERS-D
In 1898, J.J. Thomson provided the first hard evidence for the existence of subatomic
particles in the atom by using a cathode ray tube to discover the
A. proton.
B. neutron.
C. electron.
,D. nucleus. -ANSWERS-C
Which list of minerals is arranged in order from lowest to highest, using the Mohs
hardness scale?
A. quartz, diamond, talc, calcite
B. diamond, quartz, calcite, talc
C. talc, calcite, quartz, diamond
D. calcite, quartz, talc, diamond -ANSWERS-C
How does the stratosphere differ from the troposphere?
A. Atmospheric pressure increases with height in the stratosphere.
B. The stratosphere is in contact with Earth's surface.
C. Most day-to-day weather originates in the stratosphere.
D. Temperatures increase with height in the stratosphere. -ANSWERS-D
What major cloud formation is associated with warm, moist, rapidly rising air?
A. cirrocumulus
B. cirrostratus
C. cumulonimbus
D. nimbostratus -ANSWERS-C
Limestone that is weathered by water results in the formation of land surface features
known as
A. karst topography.
B. dunes.
C. loess deposits.
D. crevasses. -ANSWERS-A
,Worldwide problems of global warming, acid rain, and photochemical smog are mainly
the result of
A. releasing chlorofluorocarbons.
B. overcultivating land.
C. burning fossil fuels.
D. dumping toxic wastes. -ANSWERS-C
If all of the atoms in a substance have the same atomic number, the substance is a(an)
A. compound.
B. element.
C. mixture.
D. alloy. -ANSWERS-B
The balanced chemical equation for the formation of iron (III) oxide is
A. Fe + O2 -> FeO2.
B. 4Fe + 3O2 -> 2Fe2O3.
C. 3Fe + O2 -> Fe3O2.
D. Fe + O -> FeO. -ANSWERS-B
Small molecules that contain H bonded to O have higher boiling points than similar
molecules in which H is bonded to S. Why does this change occur?
A. The H to O bond is nonpolar.
B. The H to S bond is more polar than the H to O bond.
C. The H to O bond is more polar than the H to S bond.
D. The H to S bond is nonpolar. -ANSWERS-C
A + B -> AB What type of reaction is given above?
A. combination
B. decomposition
, C. double displacement
D. single displacement -ANSWERS-A
According to Hooke's Law, the relationship between the elastic force and the distance of
stretch for an elastic material is
A. inversely proportional.
B. directly proportional.
C. exponential.
D. power squared. -ANSWERS-B
A ball rolls off a horizontal table and hits the floor at a faster vertical speed than when it
leaves the table. This is an example of which law of objects in motion?
A. Newton's 1st law
B. Newton's 2nd law
C. Kepler's 1st law
D. Kepler's 2nd law -ANSWERS-B
The pitch of a car's horn changes as the car approaches. This is an example of
A. constructive interference.
B. destructive interference.
C. diffraction.
D. the Doppler effect. -ANSWERS-D
Two identical objects with identical electrostatic charges will
A. repel one another.
B. attract one another.
C. have no effect on each other.
D. emit a spark. -ANSWERS-A