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The Tertiary is a(n)
A) epoch.
B) era.
C) eon.
D) period.
A chemical combination of two or more substances in variable proportions is called
A) a mixture.
B) a compound.
C) an ion.
D) a molecule.
C3H4is an example of a(n)
A) aromatic.
B) alkene.
C) alkyne.
D) alkane.
E) cycloalkane
On which planet (other than Earth) have air bags been deployed?
A) Venus
B) Mars
C) Mercury
D) Saturn
The Phanerozoic is a(n)
A) epoch.
B) era.
C) eon.
D) period.
Avogadro's number has a numerical value of
A) 6.02 x 1023.
B) 1.00 x 1023.
C) 3.01 x 1023.
D) none of these.
"For every action there is an equal and opposite reaction" is a statement of Newton's
A) law of universal gravitation.
B) first law.
C) second law.
D) third law.
Compounds that have the same molecular formula but different structural formulas are
called structural, or constitutional,
A) isomers.
B) derivatives.
C) congeners.
D) isotopes.
E) progeners.
The stratosphere and the troposphere account for ______________ of the mass of the
atmosphere.
A) 80%
B) 90%
C) 99.9%
D) 78.1%
Which one of the following is nota physical property of matter?
A) Specific heat
B) Boiling point
C) Density
D) Flammability
One ______________ is the distance to a star when the star exhibits a parallax of one
second of arc.
A) parsec
B) light-year
C) astronomical unit
D) million miles
The third brightest object in the sky is
A) the Sun.
B) the Moon.
C) Venus.
D) Mars.
Greenland and Antarctica are covered with glacial ice sheets called
A) valley glaciers.
B) mountain glaciers.
C) continental glaciers.
D) none of the above.
At present, the formation of the solar system is believed by most astronomers to have
begun with a large, swirling volume of cold gas and dust called the ______________
nebula.
A) condensation
B) primordial
C) accretion
D) celestial
A river's suspended load and bed load may accumulate at its mouth and form a
A) sea arch.
B) guyot.
C) delta.
D) sea mount.
Combinations of atoms from the far right side of the periodic table with atoms from the
far left side usually form ______________ compounds.
A) organic
B) ionic
C) covalent
D) polar
What is the pseudoscience that contends the planets' positions in the sky at the time of a
person's birth affect the individual's personality or future?
A) Astronomy
B) Card reading
C) Physics
D) Astrology
What is the temperature in kelvins of the visible surface of the Sun?
A) 600 K
B) 6 million K
C) 6 billion K
D) 6000 K
A digital thermometer can make readings to the tenth of a degree at either the Celsius
setting or the Fahrenheit setting. Which reading would be more precise?
A) The Fahrenheit setting, since 1 degree Fahrenheit is smaller than 1 degree Celsius
B) The Fahrenheit setting, since 1 degree Celsius is smaller than 1 degree Fahrenheit
C) The Celsius setting, since 1 degree Fahrenheit is smaller than 1 degree Celsius
D) The Celsius setting, since 1 degree Celsius is smaller than 1 degree Fahrenheit
On a winter day the temperature drops from "15°C to "25°C overnight. If a pan sitting
outside contains 0.50 kg of ice, how much heat is removed from the ice for this
temperature change?
A) 0.25 kcal
B) 2.5 kcal
C) 10 kcal
D) 1 kcal
Some of Earth's artificial satellites orbit in the
A) stratosphere.
B) troposphere.
C) mesosphere.
D) thermosphere.
E) exosphere.
Exploration of this part of the atmosphere was conducted in the nineteenth century with
hot-air balloons.
A) Stratosphere
B) Troposphere
C) Mesosphere
D) Thermosphere
The direction of the Moon's orbit about Earth is
A) westward.
B) eastward.
C) clockwise, as viewed from above Earth's North Pole.
D) none of these.
The lines in the visible region of the hydrogen spectrum arise from transitions from
higher levels back to the level where nequals
A) 3.
B) 1.
C) 2.
D) 4.
If a wave has a period of 0.100 sec, it has a frequency of
A) 1/10 Hz.
B) 3.2 Hz.
C) 100 Hz.
D) 10 Hz.
Which of the following is the largest dwarf planet?
A) Ceres
B) Mercury
C) Pluto
D) Eris
Which of the following gases is a trace natural constituent of the air?
A) CO
B) SO2
C) CO2
D) NO2
Homogeneous mixtures are
A) heterogeneous mixtures.
B) compounds.
C) nonuniform mixtures.
D) solutions.
The planet with Red Spot Junior is
A) Jupiter.
B) Neptune.
C) Uranus.
D) Saturn.
E) Mars.
Take a cup of water, add sugar, and stir. If the resulting solution no longer contains
sugar crystals, the solution is said to be
A) an unsaturated solution.
B) a saturated solution.
C) a heterogeneous solution.
D) none of these.
The lesser amount of a substance in a solution is generally called the
A) solute.
B) salt.
C) solvent.
D) alloy.
The hydroxide ion has a charge of
A) 1".
B) zero.
C) 1+.
D) 2+.
What is the visible surface of the Sun called?
A) Photosphere
B) Atmosphere
C) Stratosphere
D) Glowing sphere
The number of moles of solute per liter of solution is called the ______________ of the
solution.
Wyoming's Grand Tetons are examples of ______________ mountains.
Silicates are minerals that have the oxygen and silicon ______________ as their basic
structure.
The common name for CH4 is ______________.
A gas of electrons and protons or other nuclei is called a(n) ______________.
The planet ______________ contains more than half the mass of the solar system not in
the Sun.
The entropy of an isolated system always ______________ when natural processes
occur.
During one year, what is the apparent change in the noonday Sun's overhead latitude?
The ______________ states that an igneous rock is younger than the rock layers it has
disturbed.
Use the following to answer questions 73-77:
The substance is entirely a gas between points ______________ and ______________.
Kepler's second law of planetary motion gives a relationship concerning equal
______________ in equal periods of time.
When an electron is added to an atom, a(n) _______________ ion is formed.
A scientist named ______________ discovered the neutron in 1932.
Newton's third law force pair acts on ______________ objects.
If a hydrocarbon is notaliphatic, it is ______________.
A(n) ______________ is a nonchemical combination of two or more substances in
variable proportions.
_____________, lava, and pyroclastics are the three general products emitted during a
volcanic eruption.
The formula for nickel(II) nitrate would be ______________.
Carboxylic acids are characterized by the molecular arrangement "COOH, called the
______________ group.
The second period of the periodic table is composed of ______________ (how many?)
elements.
