Biology
C
101
c
TeHAPTER3
st Bank
Water and Life
c
c c
,Chapter 3 Water
c c c
and Life
c
,1. In a single molecule of water, two hydrogen atoms are
c c c c c c c c c c
bonded to a single oxygen atom by?
c c c c c c
A. hydrogen bonds. c
B. nonpolar covalent bonds. c c
C. polar covalent bonds. c c
D. ionic bonds. c
E. van der Waals interactions.
c c c
2. In a group of water molecules, hydrogen bonds form
c c c c c c c c c
between?
A. the oxygen atoms in different water molecules
c c c c c c
B. Two hydrogen atoms in different water molecules
c c c c c c
C. the oxygen atom in one water molecule and a
c c c c c c c c c
hydrogen atom in another water molecule c c c c c
D. the hydrogen atoms in a single water molecule
c c c c c c c
E. None of the listed responses is Correct
c c c c c c
3. Life on Earth is dependent on all the properties of water a
c c c c c c c c c c c
s well as the abundance of water. Which property of wate
c c c c c c c c c c
r is probably most important for the functioning of organ
c c c c c c c c c
isms at the molecular level?
c c c c
A. high specific heat
c c c
B. cohesion and high surface tension
c c c c c c
C. versatility as a solvent D.
c c c c c c c c c
expansion upon freezing c c
E. high heat of vaporization
c c c c
4. Some substances, such as oil and gasoline, will not
c c c c c c c c c
dissolve in water because? c c c
A. oil and gasoline are organic compounds,
c c c c c
B. their molecules have no charges or partial charges to
c c c c c c c c c
which water molecules can adhere c c c c
C. their electrons are so stable that they do not exchange a
c c c c c c c c c c
toms with water molecules c c c
D. they do not ionize c c c
E. their molecules are so large c c c c
7
, 5. The partial charges on a water molecule occur because
c c c c c c c c c
of?
A. widespread ionization c
B. the unequal sharing of electrons between the hydrog
c c c c c c c
en and the oxygen atoms of a water molecule
c c c c c c c c
C. the high electronegativity of hydrogen
c c c c
D. covalent bonding c
E. the achievement of a stable configuration by one atom of a b
c c c c c c c c c c c
ond but not by the other partner
c c c c c c
6. Water molecules have c c c
than molecules of similar c c c c c
size, such as ammonia and methane, reflecting its capa
c c c c c c c c
city to absorb large amounts of heat.
c c c c c c
A. less surface tension c c
B. a higher boiling point
c c c
C. a lower capacity for forming D.l
cc cc cc cc c c
ower specific heat hydrogen bonds
c c c c
E. a lower melting point
c c c c
7. Most of water's unique features (for example, its versatili
c c c c c c c c
ty as a solvent, ability to moderate temperature, and coh
c c c c c c c c c
esive behavior) result from the fact that?
c c c c c c
A. hydrogen is the only element without any neutrons. c c c c c c c
B. oxygen attracts electrons more than hydrogen does.
c c c c c c
C. oxygen has only one stable isotope, but hydrogen has t
c c c c c c c c c
hree.
D. oxygen has two unfilled electron shells. c c c c c
E. More than one of the above is Correct.
c c c c c c c
8
C
101
c
TeHAPTER3
st Bank
Water and Life
c
c c
,Chapter 3 Water
c c c
and Life
c
,1. In a single molecule of water, two hydrogen atoms are
c c c c c c c c c c
bonded to a single oxygen atom by?
c c c c c c
A. hydrogen bonds. c
B. nonpolar covalent bonds. c c
C. polar covalent bonds. c c
D. ionic bonds. c
E. van der Waals interactions.
c c c
2. In a group of water molecules, hydrogen bonds form
c c c c c c c c c
between?
A. the oxygen atoms in different water molecules
c c c c c c
B. Two hydrogen atoms in different water molecules
c c c c c c
C. the oxygen atom in one water molecule and a
c c c c c c c c c
hydrogen atom in another water molecule c c c c c
D. the hydrogen atoms in a single water molecule
c c c c c c c
E. None of the listed responses is Correct
c c c c c c
3. Life on Earth is dependent on all the properties of water a
c c c c c c c c c c c
s well as the abundance of water. Which property of wate
c c c c c c c c c c
r is probably most important for the functioning of organ
c c c c c c c c c
isms at the molecular level?
c c c c
A. high specific heat
c c c
B. cohesion and high surface tension
c c c c c c
C. versatility as a solvent D.
c c c c c c c c c
expansion upon freezing c c
E. high heat of vaporization
c c c c
4. Some substances, such as oil and gasoline, will not
c c c c c c c c c
dissolve in water because? c c c
A. oil and gasoline are organic compounds,
c c c c c
B. their molecules have no charges or partial charges to
c c c c c c c c c
which water molecules can adhere c c c c
C. their electrons are so stable that they do not exchange a
c c c c c c c c c c
toms with water molecules c c c
D. they do not ionize c c c
E. their molecules are so large c c c c
7
, 5. The partial charges on a water molecule occur because
c c c c c c c c c
of?
A. widespread ionization c
B. the unequal sharing of electrons between the hydrog
c c c c c c c
en and the oxygen atoms of a water molecule
c c c c c c c c
C. the high electronegativity of hydrogen
c c c c
D. covalent bonding c
E. the achievement of a stable configuration by one atom of a b
c c c c c c c c c c c
ond but not by the other partner
c c c c c c
6. Water molecules have c c c
than molecules of similar c c c c c
size, such as ammonia and methane, reflecting its capa
c c c c c c c c
city to absorb large amounts of heat.
c c c c c c
A. less surface tension c c
B. a higher boiling point
c c c
C. a lower capacity for forming D.l
cc cc cc cc c c
ower specific heat hydrogen bonds
c c c c
E. a lower melting point
c c c c
7. Most of water's unique features (for example, its versatili
c c c c c c c c
ty as a solvent, ability to moderate temperature, and coh
c c c c c c c c c
esive behavior) result from the fact that?
c c c c c c
A. hydrogen is the only element without any neutrons. c c c c c c c
B. oxygen attracts electrons more than hydrogen does.
c c c c c c
C. oxygen has only one stable isotope, but hydrogen has t
c c c c c c c c c
hree.
D. oxygen has two unfilled electron shells. c c c c c
E. More than one of the above is Correct.
c c c c c c c
8
