Ion-dipole interactions are responsible for
A) the dissolving of salt in water.
B) ice being less dense than water.
C) the ease of electrolysis of water.
D) metallic bonding in steel.
Which of the following planets can be in opposition?
A) Mercury
B) Venus
C) Earth
D) Mars
The force responsible for chemical bonding is
A) nuclear.
B) electromagnetic.
C) none of these.
D) gravitational.
In general, slow reactions
A) are exothermic.
B) are endothermic.
C) have low activation energies.
D) have high activation energies.
An object that is positively charged will
A) attract a rubber rod stroked with fur.
B) attract a glass rod stroked with silk.
C) be polarized.
D) none of these
The bottom of the stratosphere is called the
A) stratopause.
B) tropopause.
C) mesopause.
D) thermopause.
The symbol for oxygen is
A) Ox.
B) On.
C) O.
D) Xy.
An exoergic reaction
A) absorbs energy.
B) requires a high temperature.
C) releases energy.
D) occurs only in stars.
Element A, mass 10.00 g, reacts exactly with 2.00 g of element B to form 12.00 g of
compound AB. If 5.00 g of element A is reacted with 2.00 g of element B to form the
same compound, what mass of compound AB will be formed?
A) 7.00 g
B) 6.00 g
C) 17.00 g
D) 12.00 g
The second most abundant gas in the atmosphere is
A) oxygen.
B) nitrogen.
C) water vapor.
D) carbon dioxide.
The smallest units of geologic time are the
A) eons.
B) periods.
C) eras.
D) epochs.
A solution with a pH of 6 is
A) strongly acidic.
B) weakly basic.
C) strongly basic.
D) weakly acidic.
The brightest star (apparent magnitude “1) in the night sky in the Northern Hemisphere
is named
A) Polaris.
B) Sirius.
C) Deneb.
D) Alpha Centauri.
Which of the following sound frequencies lie(s) in the audible range?
A) 22 Hz
B) 45 kHz
C) 1 MHz
D) All of these
A steady current of 0.15 A exists in a wire for 20 s.
a. How much net charge passes by a point in the wire?
b. How many electrons does this charge represent?
For the multiplication of 8.481 m times 7.7 m, the result should be reported with how
many significant figures?
A) Two
B) One
C) Three
D) Four
E) Seven
Hard water is due primarily to dissolved salts of which elements?
A) Zinc and copper
B) Calcium, iron, and magnesium
C) Sodium and potassium
D) Sodium and chlorine
Secondary seismic waves travel ______________ primary waves in solids.
A) in the direction opposite to the movement of
B) slower than
C) faster than
D) at right angles to
Chemical weathering is most prevalent in what type of climate?
A) Moist and cold
B) Dry and cold
C) Dry and hot
D) Moist and hot
What type of forces result in strike-slip faulting?
A) Expansive
B) Compressional
C) Parallel
D) Gravitational
The brilliancy of a gem is a function of its
A) index of refraction.
B) index of reflection.
C) size.
D) luster.
In which unit would it be best to state the dosage of radiation absorbed, with regard to
its effects on humans?
A) Roentgens
B) Curies
C) Becquerels
D) Rems
Which of the following is not a component of a stream’s load?
A) Mother load
B) Dissolved load
C) Suspended load
D) Bed load
The law of reflection applies to
A) specular reflection.
B) diffuse reflection.
C) irregular reflection.
D) all of these.
If a negatively charged object is brought near a suspended, positively charged object,
the suspended object will be
A) repelled.
B) charged more.
C) discharged.
D) attracted.
Which of the following elements has the lowest ionization energy?
A) Ar
B) Na
C) Ne
D) Li
We live in the epoch called the
A) Quaternary.
B) Ordovician.
C) Holocene.
D) Cenozoic.
A derived unit
A) involves only length.
B) is a combination of units.
C) applies only to density.
D) is not found in the metric system.
An object that is positively charged will
A) repel a rubber rod stroked with fur.
B) repel a glass rod stroked with silk.
C) be polarized.
D) none of these
Four kinds of metamorphism are
A) contact, thermal, hydrothermal, and regional.
B) thermal, shear, hydrothermal, and dynamic.
C) contact, shear, hydrothermal, and regional.
D) dynamic, contact, hydrothermal, and thermal.
The most important force in the hydrogen atom is
A) the nuclear force.
B) the gravitational force.
C) the electromagnetic force.
D) none of these.
A stretched string can have ______________ natural frequency(ies).
A) one
B) 10 times its length in
C) 5 times its length in
D) many
A simplified explanation of mountain building is provided by the theory of
A) orogenesis.
B) plate tectonics.
C) continental accretion.
D) epiorogenic movement.
The boundary between two air masses is called a(n) ______________.
To initiate motion, a(n) ____________ force is necessary.
The ______________ surrounds the nucleus of a comet.
The pale-green, gaseous element named ______________ was used as a poisonous gas
in World War I.
Two oppositely charged particles ______________ one another.
Draw the structural formula for glycerol.
Astronomers believe that most of the matter that makes up the universe is not detected
by any part of the electromagnetic spectrum. This mysterious matter is called
_______________.
The scientist ______________ is generally regarded as “the father of geology.”
The elapsed time between two successive crossings of the same meridian by a star other
than the Sun is known as the ______________ day.
The angular measurement in hours, minutes, and seconds from the celestial prime
meridian eastward is called _______________.
The change in wave motion produced by phase and amplitude relations of two or more
waves is called a(n) ______________ effect.
After 8.0 years have elapsed, 15/16 of a sample of a specific radionuclide has decayed.
What is the half-life of the radionuclide?
A mineral that looks glassy is said to have a(n) _______________ luster.
A(n) ______________ image is defined as one that can be brought to a focus on a
screen.
A set of ten minerals used as reference standards in determining hardness is called
the______________ hardness scale.