Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Answer the following questions
Transcribed Image Text:4.
5.
6.
7.
8.
Consider the images labelled A - D below. Which of these shows a sigma (o) interaction between two hybridized
atomic orbitals?
For questions 5-7 consider the following molecules:
1 CHO
2 H₂O
3 BF3
9.
a. A
a. 1 and 3
b. D
Which of these molecules have a tetrahedral electron domain geometry?
a. 1, 2, and 3
c. 2 and 4
A
Which of these molecules have a non-zero dipole moment?
a. only 1
b. 1, 2, 4, and 5
a.
b.
c. C
C.
b. 2, 5, and 6
Which of these molecules have at least one bond angle of 120°?
b. 3 and 4
(c. 1, 3, and 5
d.
e.
B
4 CO₂
Which one of the following is an allowed set of quantum numbers?
a. n = 2, l = 1, m, = +2, m, = -½
c. n= 3, l = 2, m, = +1 m, = +1,
e. n = 4, l = 4, m, = -1, m, = +½
c. 1, 2, and 5
d. A & B
5 SBT4
Do a
C
Which one of the following statements is false?
Ionization energy describes an endothermic change for all elements.
A 1st ionization energy can be represented by the following equation: M (g) → M* (g) + e.
For any element, the second ionization energy is larger than the first ionization energy.
Ionization energy increases from left to right across a period of the periodic table.
Ionization energy increases from top to bottom down a group of the periodic table.
с
X = 2.5
10. Consider the following elements and their given Pauling electronegativity values:
H
F
X = 2.1
X = 4.0
Which one of the following statements is true?
a. A C-S bond is best described as a nonpolar covalent bond.
c. C-F and C-H bonds have approximately the same polarity.
e. In a C-Cl bond, chlorine has a partial positive charge (8+).
6 CC14
d. only 6
d. 3 and 6
simps c'
d. 2 and 3
b. n = 4, l = 2, m, = -2, m, = -
d. n = 5, l = 2, m, = +2, m, = -1
CI
X = 3.0
lido q
S
X = 2.5
D
te
e. A & D
e. 2 and 6
e. 4 and 5
e. 3 and 6
b. H-CI may be classified as an ionic compound.
d. A C-S bond does not result from shared e-'s.
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