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WorksheetsFinal Exam Review
Total questions: 49
Worksheet time: 1hrs 27mins
Name
Class
Date
1.
Which kind of wave has the greatest frequency?
a)
gamma rays
b)
infrared
c)
ultraviolet
d)
microwaves
2.
What is the molar mass of C6H12O6?
a)
180.18
b)
180.12
c)
180.24
d)
180.06
3.
If you are going from grams of Na to grams of NaCl, what label is going to be on the bottom of the first step?
2Na + Cl2 −−〉 2NaCl
2Na + Cl2 −−〉 2NaCl
a)
Grams Na
b)
Grams NaCl
c)
Moles Na
d)
Moles NaCl
4.
Using the following equation:
Fe2O3(s) + 3H2(g) --> 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 16.5 grams of Fe2O3?
Fe2O3(s) + 3H2(g) --> 2Fe(s) + 3H2O(l)
How many moles of iron can be made from 16.5 grams of Fe2O3?
a)
0.21 moles Fe
b)
0.66 moles Fe
c)
2.44 moles Fe
d)
0.72 moles Fe
5.
What shape are P Orbitals?
a)
Cloverleaf shaped
b)
Spherical shaped
c)
Hybrid structure
d)
Dumbell shaped
6.
How many moles is 4 grams of Calcium?
a)
0.10 moles
b)
10 moles
c)
44 moles
d)
160 moles
7.
The pH of a solution is 2.0. What is the [OH-] concentration?
a)
1x10-12M
b)
12 M
c)
1x10-2M
d)
2 M
8.
Which one of the following atoms has the largest radius?
a)
Sr
b)
Ca
c)
K
d)
Rb
9.
Which of the following correctly lists the five atoms in order of increasing size (smallest to largest)?
a)
O < F < S < Mg < Ba
b)
F < O < S < Mg < Ba
c)
F < O < S < Ba < Mg
d)
O < F < S < Ba < Mg
10.
Which of the following can form diatomic molecules held together by double bonds?
a)
C
b)
S
c)
Cl
d)
N
11.
Of the atoms below, __________ is the least electronegative.
a)
Rb
b)
F
c)
Si
d)
Cl
12.
In general, as you go across a period in the periodic table from left to right: (1) the atomic radius __________; (2) the electronegativity __________; and (3) the first ionization energy __________.
a)
decreases, decreases, increases
b)
increases, increases, decreases
c)
increases, increases, increases
d)
decreases, increases, increases
13.
What is this element?
1s22s22p63s2
1s22s22p63s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
14.
What is the name of pairs of electrons that do not participate in bonding?
a)
outer pair
b)
unvalenced pair
c)
unshared pair
d)
inner pair
15.
Hund’s rule states…
a)
Atomic orbitals have opposite spins and 2 electrons each
b)
Electrons occupy orbitals of highest energy first and energy level changes as you go up
c)
Electrons occupy orbitals of lowest energy first, starting with 1s
d)
Fill orbitals of the same energy with one electron, then go back and pair them up if you have extra electrons
16.
What do you start electron configuration with?
a)
1s2
b)
1d10
c)
1f14
d)
1p6
17.
What is this molecule?
a)
CH4
b)
NaCl3
c)
SK4
d)
S4K2
18.
How many electrons are in the outer shell of Chlorine (Cl)?
a)
1
b)
3
c)
6
d)
7
19.
An anion has more electrons than protons.
a)
True
b)
False
20.
What is the conjugate acid in the following equation?
a)
PO43-
b)
HNO3
c)
NO3-
d)
HPO42-
21.
A photon is emitted from an atom with an energy of 4.25x10^-19 J. What is the wavelength of the photon?
a)
4.67 x 10-7 m
b)
2.73 x 10-4 m
c)
1.28 x 10-10 m
d)
6.42 x 1014 m
22.
*
a)
trigonal pyramid
b)
linear
c)
bent
d)
angular
23.
How many lone pairs are in this molecule's structure?
a)
6
b)
2
c)
0
d)
4
24.
Which is most acidic?
a)
pH = 8.5
b)
[H3O+] = 1 x 10-13
c)
[H3O+] = 1 x 10-2
d)
pH = 3
25.
Which of the following most likely represents the molecular geometry of water?
a)
A
b)
B
c)
C
d)
D
26.
If the temperature of a gas increase, the pressure...
a)
Decreases
b)
Increases
c)
Does not change
27.
In the ideal gas law, what does the variable n represent?
a)
gas constant
b)
moles
c)
Temperature
d)
Volume
28.
If a balloon is cooled what will happen to the volume?
a)
Volume will increase
b)
Volume will decrease
c)
Volume will not change
29.
The following graph shows ____ relationship.
a)
Direct
b)
Inverse
30.
A container is filled with H2, and H2O. Calculate the partial pressure of H2 when the pressure of water is 17torr. The total pressure of the gases is 750torr.
a)
767.5torr
b)
732torr
c)
42.86torr
31.
A sample of oxygen gas has a volume of 150.0 mL when its pressure is .947 atm. What will the volume of the gas be if it is lowered to a pressure of 0.658 atm and the temperature remains constant?
a)
72 mL
b)
144 mL
c)
216 mL
d)
288 mL
32.
What is the conjugate base in the following reaction?
a)
HCO3-
b)
HCl
c)
H2CO3
d)
Cl-
33.
What is the conjugate base of HCO3-?
a)
HCO3-
b)
H2CO3-
c)
H2CO3
d)
CO32-
34.
A sample of gas with a volume of 30.0 mL at 25.0oC is heated to 50.0oC. What is the new volume of the gas?
a)
60.0 mL
b)
15.0 mL
c)
27.5 mL
d)
32.5 mL
35.
chromium (III) nitrate
a)
Cr3N2
b)
Cr2N
c)
Cr2NO3
d)
Cr(NO3)3
36.
P2O5
a)
phosphorus oxide
b)
phosphorus (II) oxide
c)
diphosphorus pentoxide
d)
phosphorus pentoxide
37.
SeCl4
a)
selenium chloride
b)
monoselenium tetrachloride
c)
selenium tetrachloride
d)
monoselenium chloride
38.
Co+2 combines with (NO2)- to form
a)
Co3(NO)2
b)
Co(NO2)
c)
NO(Co)2
d)
CO(No)3
39.
Beta particles have a _____ charge
a)
+1
b)
0
c)
-1
d)
+2
40.
In order of most to least penetrating radiation we have
a)
Alpha , Beta, Gamma
b)
Beta , Gamma , Alpha
c)
Gamma, Beta, Alpha
d)
Gamma, Alpha, Beta
41.
This type of reaction occurs when a heavy nucleus, such as U-235, splits into two or more parts. [KEY WORD: SPLIT]
a)
Fission
b)
Fusion
c)
Chain reaction
d)
synthesis
42.
If we start off with element 24X50 after an alpha decay we get another element Y that looks like
a)
22Y50
b)
22Y46
c)
20Y48
d)
26Y54
43.
If we start off with element 24X50 after an gamma decay we get another element that looks like
a)
24X50
b)
23X50
c)
24X50
d)
25X50
44.
The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?
a)
3.0g
b)
0.25mg
c)
0.3g
d)
0.25g
45.
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
a)
SO
b)
SO2
c)
SO3
d)
SO4
46.
What is the empirical formula if you have 35.98% aluminum and 64.02% sulfur?
a)
AlS
b)
Al2S
c)
AlS2
d)
Al2S3
47.
EF = CF2
Molecular formula mass = 192
MF =
Molecular formula mass = 192
MF =
a)
C4F8
b)
C4F
c)
CF8
d)
C2F4
48.
What orbital(s) are represented by this shape?
a)
s
b)
p
c)
s and d
d)
p and s
49.
what are the first two quantum numbers for Bromine?
a)
n=3 l=0
b)
n=4 l=1
c)
n=0 l=3
d)
n=1 l=4
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