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BJU Chemistry Chapter 7 Flashcards | StudBud
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BJU Chemistry Chapter 7
BJU Chemistry Chapter 7
39 terms
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A #chemistry quiz to review #chemical bonds and #molecular #geometry
Flashcards
39 cards
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Practice quiz
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Questions
39
Answers
1
What shape molecule that has 4 electron concentrations with only 3 having bonding pairs?
tetrahedral
bent
pyramidal
trigonal planar
2
type of bond that results from orbitals overlapping end to end
sigma
metallic
pi
ionic
3
Given the Lewis structure for HCN, what is the direction of the dipole moment?
H : C :: N: <--
H : C :: N: up
H : C :: N: -->
H : C :: N: down
4
covalent bonds are formed when orbitals of different atoms overlap
MO theory
electron sea theory
VSEPR theory
valence bond theory
5
shape of H
2
CO
tetrahedral
bent
trigonal planar
pyramidal
6
shape that is always polar
bent (109.5°)
tetrahedral
trigonal planar
linear
7
According to VSEPR, three-atom molecules are
linear or bent
linear or pyramidal
always bent
bent or pyramidal
8
angle of bonds in a pure tetrahedral arrangement
120°
109.5°
360°
180°
9
Which one of the following molecules is NOT linear?
CO2
CS2
HCl
GeF2
10
δ- and δ+
partial polarity
partial orbital
partial charge
partial bond
11
Shape of HCN
linear
pyramidal
bent
trigonal planar
12
theory that predicts the magnetic qualities of diatomic oxygen
molecular orbital
bond hybridization
valence bond
VSEPR
13
bent molecule
NH3
Cl2CO
CO2
OF2
14
theory that states that the molecular shapes are largely determined by repulsion of electrons
VSEPR
electron sea
valence bond
MO
15
What is the simplest type of bond
sigma bond on the bond axis
pi bond above the bond axis
sigma bond below the bond axis
pi bond on the bond axis
16
Shape of CF
2
Cl
2
tetrahedral
bent
trigonal planar
pyramidal
17
type of bond that results from orbitals overlapping side-by-side
metallic
ionic
pi
sigma
18
trigonal planar molecule
NH3
H2O
H2CO
PCl3
19
Shape of OCl
2
linear
trigonal planar
bent
pyramidal
20
number of sigma (δ) and pi (π) bonds in N
2
1 δ and 1 π
2 δ and 1 π
1 δ and 0 π
1 δ and 2 π
21
according the VSEPR, what is the shape of a two-atom molecule
linear or bent
linear, bent, or pyramidal
always bent
always linear
22
Shape of CH
2
O
bent
trigonal planar
pyramidal
linear
23
strongest bond
can't tell
triple
single
double
24
diatomic molecules
bent polar
bent nonpolar
linear polar
linear nonpolar
25
determines the polarity of a polar bond
difference in bond angles
difference in bond types
difference in group numbers
difference in electronegativity
26
Shape of O
3
pyramidal
bent
linear
trigonal planar
27
element that can be a central atom and hold less than 8 valence electrons
bromine
boron
bohrium
beryllium
28
strongest bond
sigma
pi
29
molecule that has more than an octet of electrons around the central atom
CH3Cl
H2O
CF6
NF4
30
orbital that can form a sigma bond
f
p
d
s
31
the vector sum of all bond polarities that exist in a molecule
polar moment
polar arrow
dipole moment
dipole arrow
32
shape of PH
3
pyramidal
trigonal planar
linear
bent
33
number of electrons if there is a full
s
and a full
p
sublevel
6
8
2
10
34
the process by which new kinds of orbitals of equal energy are formed from a combination of other orbitals
valence bond
dipole moment
VSEPR
hybridization
35
the display of an intermediate character within bonds of molecules with >1 lewis structure
antibonding
hybridization
polarity
resonance
36
number of sigma (δ) and pi (π) bonds in O
2
1 δ and 2 π
1 δ and 1 π
1 δ and 0 π
2 δ and 1 π
37
polar compound
CH4
NH3
CO2
Br2
38
Shape of HF
trigonal planar
pyramidal
linear
bent
39
the phenomena that is related to the presence of unpaired electrons in molecular orbitals
hybridization
polar covalent bonds
molecular resonance
paramagnetism
