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Chemical Bonding & Molecular Geometry (College Prep) Flashcards | StudBud
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Chemical Bonding & Molecular Geometry (College Prep)
Chemical Bonding & Molecular Geometry (College Prep)
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bonding and Molecular Geometry (college Prep)
Flashcards
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Questions
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Answers
1
Which has a double bond?
H2
CO2
NH41+
CO
2
Which of the molecules have 4 electron domains? (see image)
all of them
NH3 and CO2
NH3 and H2O
just NH3
3
What molecular geometry (shape) do all diatomic molecules form?
bent
they don't have a shape
trigonal bipyramidal
linear
4
If the electronegativity of H is 2.1 and of Cl is 3.0, which bond is formed to create HCl?
Metallic
Polar covalent
Ionic
non polar covalent
5
Metals have _______ electronegativity values because they have low attraction for _______.
low, protons
low, electrons
high, electrons
high, protons
6
Lone pairs of electrons in a molecule cause bonded pairs of electrons to
stay as they usually would
move farther apart
move closer together
unbond
7
How many bonding pairs are around the central atom for the ammonia (NH
3
) molecule?
1
3
4
2
8
How many unshared pair of electrons (on central atom) are in the lewis structure for CO
2
?
1
0
4
2
9
Name the molecular geometry from this 3d sketch.
trigonal planar
trigonal pyramidal
octahedral
tetrahedral
10
What element best represents the boy in the white t-shirt because he has 6 toys?
lead
lithium
carbon
oxygen
11
Which of these molecules has a bond angle LESS THAN 109.5?
water
boron trihydride
carbon dioxide, CO2
12
What is the resulting charge of the sodium cation and why? (see image)
+1 b/c it loses 1 electron
-1 b/c it loses 1 electron
+1 b/c it gains 1 electron
-1 b/c it gains 1 electron
13
Lone pairs of electrons in a molecule cause bonded pairs of electrons to
unbond
move closer together
stay as they usually would
move farther apart
14
Which atom will not follow octet rule and have 6 e- around it?
H
C
B
Be
15
How many total electrons are in the lewis structure for (NH
4
)
+1
?
8
12
10
9
16
Which of the following compounds would show SHARING of electrons in its Lewis Structure?
CaCl2
KCl
H2O
LiBr
17
Water has a bond angle closest to ________.
109.5
120
107.5
104.5
18
A bond formed between two atoms with zero electronegativity difference is likely to be?
ionic
nonpolar covalent
polar covalent
metallic
19
What are the atoms fighting over?
core electrons
a cute girl
valence electrons
a cute guy
20
Why is hydrogen weaker than oxygen?
has higher electronegativity
has lower electronegativity
H is more to the right on periodic table
because it's a bunny!
