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CHEMISTRY Common Assessment #2 Quiz Flashcards | StudBud
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CHEMISTRY Common Assessment #2 Quiz
CHEMISTRY Common Assessment #2 Quiz
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1
What is the molecular geometry of CF
4
?
bent
trigonal planar
linear
tetrahedral
2
What holds an ionic bond together?
opposite ion charges
static electricity
the force
gravity
3
The coefficients needed to balance this equation are: C
3
H
8
+ O
2
--> CO
2
+ H
2
O
1,5,3,4
1,2,3,4
1,2,1,2
1,3,4,5
4
Is this polar?
No
Yes
5
This molecule is.......
Asymmetric and Polar
Symmetric and Non-Polar
Asymmetric and Non-Polar
Symmetric and Polar
6
Which is correctly names NCl3
Nitrogen trichloride
mononitrogen trichloride
Nitrogen trichlorine
Trinitrogen monochlorine
7
The formula for finding the number of neutrons is _____?
Protons - Electrons
Atomic Number - Atomic Mass
Atomic Number + Atomic Mass
Atomic Mass - Atomic Number
8
What is the periodic trend for atomic radius?
going up increase, going down decrease
left side increase, right side decrease
increase going down, decrease going right
decrease going down, increase going right
9
Which rule does the following diagram violate?
Pauli
Aufbau
Hund's
None
10
Which is the strongest intermolecular force:
London dispersion forces
hydrogen bonding
covalent bonding
11
Which rule does the following diagram violate?
None
Hund's
Pauli
Aufbau
12
Number of significant figures 34.000
5
4
2
3
13
Type of reaction: C
3
H
8
+ O
2
--> CO
2
+ H
2
O
Single Replacement
Decomposition
Combustion
Acid Base
14
Type of reaction: HBr + Ca(OH)
2
--> H
2
O + CaBr
2
Combustion
Acid Base
Double replacement
Single Replacement
15
Is this molecule polar or non-polar?
Polar
Non-polar
16
What is the strongest intermolecular force in carbon tetrachloride (CCl
4
)?
London dispersion forces
hydrogen bonding
dipole-dipole
17
Find the coefficients: Pb + H
3
PO
4
---> H
2
+ Pb(PO
4
)
2
3,2,3,1
1,2,1,2
1,2,2,1
1,2,3,1
18
What causes water molecules to have a bent shape, according to VSEPR theory?
the unusual location of the free electrons
interaction between orbitals of the unshared pairs of oxygen
ionic attraction and repulsion
repulsive forces between unshared pairs of electrons
19
What element has an electron configuration of 1s2 2s2
Potassium
Beryllium
Helium
Hydrogen
20
How many valence electrons does arsenic have?
+3
3
-3
5
21
What is the correct formula for potassium sulfite
KSO2
KSO3
K2SO3
K3SO2
22
What is the chemical formula for silver(I) sulfide
AgS
Ag(I)S
Ag2S
AgS2
23
What is a polar covalent bond?
Electrons are shared unequally
Electrons are shared equally
Protons are shared unequally
Protons are shared equally
24
What is the correct formula for barium phosphate?
Ba3P2
BaPO4
BaP
Ba3(PO4)2
25
What is the shape and polarity of this:
triangular pyramid, polar
triangular pyramid, non-polar
triangular planar, non-polar
triangular planar, polar
26
What is the chemical formula for Lithium Oxide?
Li2O2
LiO2
Li2O
LiO
27
How many neutrons are in this Isotopic Notation?
314
88
226
138
28
The isotopic notation for an atom with 20 protons, 20 neutrons, and 20 electrons would be...
2040Ca
4020Ca
2040Ca-20
2020Ca20
29
Is this molecule polar on Non-polar?
Polar
Non-Polar
30
What is the VSEPR Shape of CO
2
?
trigonal planar
linear triatomic
bent triatomic
pyramidal
31
What is the molecular geometry of NH
3
?
Bent
Trigonal Planar
Tetrahedral
Trigonal Pyramidal
32
What is the electron configuration for Neon?
1s22s22p63s2
1s22s2
1s22s22p6
1s22s22p3
33
What is the trend for EN (electronegativity) as you go down and across the periodic table
As you go down (decreases), as you go across (decreases)
As you go down (decreases), as you go across (Increases)
As you go down (increases), as you go across (decreases)
As you go down (increases), as you go across (Increases)
34
Who is your favorite chem teacher?
Mrs. Progar
Mrs. Progar
Mrs. Progar
Mrs. Progar
35
In the speed of light equation, frequency and wavelength are inversely related?
False
True
36
You can determine the number of valence electrons by the:
group (family)
atomic mass
period
chemical symbol
37
Type of reaction: Pb + H
3
PO
4
---> H
2
+ Pb(PO
4
)
2
Acid Base
Double replacement
Single Replacement
Combustion
38
Which rule does the following diagram violate?
None
Hund's
Aufbau
Pauli
39
Compound names and formulas are listed below. Which name is
incorrect
?
boron trifluoride BF3
sulfur tetrafluoride, SF4
nitrogen pentaoxide N2O5
carbon disulfide, CS2
40
what is the periodic trend of atomic radius
larger right to left across
smaller right to left across
all of the above
smaller down a group
41
Which of the following formulas is ionic?
O3
Al2O3
H2O
CO2
42
What is the shape of this molecule?
Tetrahedron
Trigonal pyramid
Bent
Trigonal planar
43
Type of reaction: AlBr
3
+ K
2
SO
4
--> KBr + Al
2
(SO
4
)
3
Double replacement
Combustion
Single replacement
Acid base
44
What is the number of electrons from this isotopic notation
88
314
226
138
45
Name the following inorganic compound.
iron (III) carbonate
iron (III) carbide
iron (II) carbonite
iron (II) carbonate
46
What intermolecular forces does this molecule have?
LDF, Dipole-Dipole, and Hydrogen Bonding
LDF and Dipole-Dipole
Only Dipole-Dipole
Hydrogen Bonding and LDF
47
What is the shape and polarity of this:
triangular planar, non-polar
trigonal pyramid, polar
trigonal pyramid, non-polar
triangular planar, polar
48
What is the correct formula for dinitrogen pentafluoride?
N5F2
N2F5
N2Fl5
NF3
49
What is the VSEPR structure of CH
4
?
Linear
Trigonal Planar
Tetrahedral
Trigonal Pyramid
50
This bond is polar O
2
electronegativity of O is 3.5
False
True
51
This bond is polar: HCl electronegativities: H 2.1, Cl 3.0
True
False
