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Review unit 5 and 6 Flashcards | StudBud
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Review unit 5 and 6
Review unit 5 and 6
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Covalent bonding and intermolecular forces
Flashcards
40 cards
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Questions
40
Answers
1
Name the compound
biodine heptaoxide
diodide (II) decaoxide
iodine (II) oxide
diodine hexoxide
2
Why are the molecules of hydrocarbons nonpolar?
Van der Waals forces overcome polarity
All the bonds are single covalent bonds
The intermolecular attractions are strong
The electron pair is shared almost equally in all bonds
3
This diagram represents sulfur hexafluoride. What describes its VSEPR shape?
Trigonal planar
Tetrahedryl
Trigonal bipyramidal
Octahedryl
4
What is the VSEPR structure for SnCl
3
?
Trigonal Planar
Tetrahedral
Trigonal Pyramid
Linear
5
Which VSEPR shape is CH
4
?
Tetrahedral
Linear
Bent
Trigonal pyramidal
6
What is the name of this VSEPR shape?
Bent
Tetrahedral
Linear
Trigonal Planar
7
The molecules HF has a __________ IMF.
ionic
hydrogen bond
dispersion
dipole-dipole
8
What is the correct name for Na
3
PO
4?
tetrasodiumphoxide
trisodium tetraphosphate
sodium phosphate
sodium phosphorus oxygen
9
Which of the following molecules is polar?
SO3
NCl3
CCl4
PF5
10
Which of the following formulas represents a covalent molecular compound?
BeF2
Xe
SO2
ZnO
11
Name : P3N5
phosphate nitrite
phosphorous nitride
pentanitric acid
triphosphorous pentanitride
12
What does the VSEPR theory do?
nothing
Demonstrates the importance of covalent bonds
Predicts the molecular geometry of a molecule
identifies polyatomic ions
13
Name the phase change: Dry Ice "disappears".
Liquification
Deposition
Vaporization
Sublimation
14
What is a triple covalent bond?
3 pairs of electrons are shared between 2 atoms
three electrons are lost to another atom
a pair of electrons are shared between 3 atoms
a bond between two atoms
15
Attractions between polar molecules are _____ than attractions between nonpolar molecules.
The same
Not enough information
Weaker
Stronger
16
Choose the covalent compound.
SrCl2
Li2O
CaCl2
CCl4
17
Which contains covalent bonds?
CO2
NaCl
Zn
K2S
18
Covalent bonds
transfer electrons
don't have electrons
switch electrons
share electrons
19
What is the VSEPR structure of CH
4
?
Trigonal Planar
Tetrahedral
Linear
Trigonal Pyramid
20
Which compound matches the name dinitrogen monoxide?
NO
NO2
N2O2
N2O
21
VSEPR predicts the shape of SF
4
to be?
See-saw
Bent
Square planar
Tetrahedral
22
What is a polar covalent bond?
Protons are shared equally
Protons are shared unequally
Electrons are shared equally
Electrons are shared unequally
23
Which bond is considered polar?
Li-F
Br-Br
P-Cl
Mg-Cl
24
The name of the compound with the formula N
2
F
4
is...
nitrogen tetrafloride
dinitrogen fluoride
dinitrogen tetrafluoride
nitrogen fluoride
25
Which pair are likely to form a covalent bond?
Carbon and Calcium
Hydrogen and Fluorine
Lithium and oxygen
Chlorine and Neon
26
The name of CaO is. . . .
Calcium Oxygen
Calcium Oxide
monocalcium monoxide
Calcium monoxide
27
What is the name of the molecule below?
Pentahydride dinitride
Dinitrogen tetrahydride
Nitrogen hydride
Mononitrogen dihydride
28
Use VSEPR to predict the geometry of BH
3
.
Trigonal pyramidal
Trigonal bipyramidal
Trigonal planar
Tetrahedral
29
How many bonds can Carbon have?
5
3
2
4
30
Which compound has a polar covalent bond?
NaCl
H2O
MgCl2
KI
31
What is the name of AlCl
3
aluminum (III) chloride
aluminum trichloride
aluminum chloride
aluminum chlorite
32
Methane (CH
4
) is
Nonpolar
Covalent polar
Polar
Ionic
33
When do you not need to use prefixes when naming covalent molecules?
When there is only 1 atom of the first element
When there is only 1 atom of the second element
When there is only 1 atom, either the first or second
34
Name the following compound: SF
6
Sulfur (II) flouride
Sulfur flouoride
Sulfur hexaflouride
Monosulfur hexaflouride
35
Naming covalent molecules requires...
add the prefix hydro-
change the ending to -ate
Include roman numerals after the cation
prefixes (mono, di, tri...)
36
What is the name of the only type of intermolecular forces that is possible between non-polar molecules?
van der Waals forces
London dispersion force
dipole forces
attractive forces
37
What is the name given to the outermost electron(s)?
Valproate electrons
Planetary electrons
Outside electrons
Valance electrons
38
What is the name of the ion N
3-
?
Nitrogen
Nitride
Nitrite
Nitrate
39
What is VSEPR?
Valence Shell Electronegativity Power Repulsion
Valence Sphere Electron Pair Repeater
Valence Shell Electron Pair Repulsion
40
How do you know if a compound is covalent?
if the 1st element is a non-metal
if the first element is a metal
if the 2nd element is a non-metal
if the 2nd element is a metal
