The Chemical Context of Life Chapter 2 Active Lecture Questions for Eighth Edition

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Active Lecture Questions for
BIOLOGY, Eighth Edition
Neil Campbell & Jane Reece
Chapter 2
The Chemical Context of Life
Questions prepared by
William Wischusen,
Louisiana State University
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Based on the periodic table shown here, which
elements will most likely form an ionic bond?
a) Na and Cl
b) Li and F
c) C and O
d) N and O
e) Si and Cl
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Based on the periodic table shown here, which
elements will most likely form a polar
covalent bond?
a) Na and Cl
b) C and O
c) N and O
d) Si and Cl
e) H and H
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Based on the periodic table shown here, which
elements will most likely form a covalent bond?
a) Na and Cl
b) C and O
c) N and O
d) Si and Cl
e) H and H
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
What do elements with atomic numbers 6, 14,
and 22 have in common?
a) same number of electrons
b) same atomic mass
c) same valence
d) will form the same number of bonds
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Living systems differ from nonliving systems
in that
a) living systems are composed largely of unusual
elements.
b) living systems are composed largely of elements
with large (high) atomic numbers.
c) living systems contain large percentages (greater
than 10%) of nine elements.
d) living systems combine simple elements in unique
combinations.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
Water is a polar molecule because of the
presence of ___________ bonds.
a) ionic
b) covalent
c) polar covalent
d) hydrogen
e) More than one of the above options is correct.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
The force of the chemical bond (the
attraction between the different elements)
a) is an electrical attraction.
b) is a unique chemical attraction.
c) results from the sharing of electrons.
d) results from atoms filling their outermost valence
shell.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Benjamin Cummings.
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