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WorksheetsFall 2017 Final Exam Review
Total questions: 60
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
How many protons does this element have?
How many protons does this element have?
a)
32
b)
33
c)
34
d)
no way to know
2.
24.1% of all the isotopes of a an element have a mass of 75.23 amu, 48.7% have a mass of 74.61 amu, and 27.2% have a mass of 75.20 amu.
What is the average mass of this element?
What is the average mass of this element?
a)
74.92 amu
b)
24.97 amu
c)
75.01 amu
d)
74.51 amu
3.
An element has three different isotopes. One has a mass of 35.00 amu; another has a mass of 36.00 amu; and another has a mass of 38.00 amu. What is the average atomic mass of this element?
a)
36.33 amu
b)
37.00 amu
c)
12.11 amu
d)
impossible to tell
4.
An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% abundant. What is the average atomic mass? What element is it?
a)
9.012, Beryllium
b)
12.011, Carbon
c)
6.941, Lithium
d)
10.812, Boron
5.
What is the name of the atom pictured here?
a)
Nitrogen
b)
Nitrogen-15
c)
Nitrogen-7
d)
Nitrogen-8
6.
Which of the following could have 82 neutrons?
a)
W-182
b)
Ta-181
c)
Cs-132
d)
Ba-138
7.
If X is the symbol for an element, which of the following two symbols represent isotopes of the same element?
I. 7735X II. 7733X III. 8137X IV. 8135 X
I. 7735X II. 7733X III. 8137X IV. 8135 X
a)
I and II
b)
III and IV
c)
I and IV
d)
I and III
8.
To what place is this cylinder graduated?
a)
hundreds place
b)
tens place
c)
ones place
d)
tenths place
9.
How long is object B on ruler 2?
a)
4 cm
b)
4.4 cm
c)
4.45 cm
d)
4.459 cm
10.
How long is object A on ruler 1?
a)
6 cm
b)
6.7 cm
c)
6.78 cm
d)
6.785 cm
11.
To what place is ruler 2 graduated?
a)
tens place
b)
ones place
c)
tenths place
d)
hundredths place
12.
Least Dense ?
a)
C & D
b)
B & D
c)
A & B
d)
A & D
13.
Same volume?
a)
C & D
b)
B & C
c)
A & B
d)
A & D
14.
Least volume?
a)
A
b)
B
c)
C
d)
D
15.
If you increased the space between the particles in container A, what would happen to its density?
a)
density would increase
b)
density would decrease
c)
density stays the same
d)
not enough information
16.
If you decreased the space between the particles in container D, what would happen to its density?
a)
density would increase
b)
density would decrease
c)
density stays the same
d)
not enough information
17.
Most likely a liquid?
a)
A
b)
B
c)
C
d)
D
18.
Most dense?
a)
A
b)
B
c)
C
d)
D
19.
Least mass?
a)
A
b)
B
c)
C
d)
D
20.
Which is most appropriate for the following value:
2.5 x 10^-4 meters
2.5 x 10^-4 meters
a)
250 micrometers
b)
25 micrometers
c)
2.5 micrometers
d)
0.25 millimeters
21.
Which is most appropriate for the following value:
0.0000000063 Liters
0.0000000063 Liters
a)
6.3 nL
b)
63 nL
c)
630 nL
d)
0.63 microLiters
22.
Which is most appropriate for the following value:
193,748,904 Liters
193,748,904 Liters
a)
Mega
b)
Kilo
c)
milli
d)
micro
23.
Which is most appropriate for the following value:
0.045 milliLiters
0.045 milliLiters
a)
Mega
b)
Kilo
c)
milli
d)
micro
24.
Which is most appropriate for the following value:
0.04543 Liters
0.04543 Liters
a)
Mega
b)
Kilo
c)
milli
d)
micro
25.
Which is most appropriate for the following value:
0.004543 Liters
0.004543 Liters
a)
Mega
b)
Kilo
c)
milli
d)
micro
26.
Which value matches
8.025 x 10-8
8.025 x 10-8
a)
.00000008025
b)
.000000008025
c)
802,500,000,000
d)
80,250,000,000
27.
Which value matches
1001
1001
a)
1.0001 x 104
b)
1.01 x 105
c)
1.001 x 103
d)
10.1 x 103
28.
Most appropriate prefix?
0.0000002203 L
0.0000002203 L
a)
pico
b)
Giga
c)
nano
d)
Tera
29.
Which prefix?
520,000,000
520,000,000
a)
milli
b)
kilo
c)
Mega
d)
micro
30.
Which prefix
.000045
.000045
a)
micro
b)
nano
c)
Mega
d)
Giga
31.
A 500 mL metal cylinder holding 0.100 moles of helium gas is known to rupture at a pressure of 10 atmospheres. At what temperature, in °C, will the container fail?
a)
336 °C
b)
608 740 °C
c)
- 272.4°C
d)
609 °C
32.
A 4.0 liter container has two gases inside, neon and argon. It is known that at 18 °C, the total pressure of the combined gases is 0.850 atm. If it is known that there are 0.100 moles of neon in the container, how many moles of argon are in the container?
a)
0.142 moles
b)
6.93 moles
c)
0.042 moles
d)
4.98 moles
33.
At 17 °C, a 0.80 mole sample of a gas exerts a pressure of 1.2 atmospheres. What is the volume of the container?
a)
22.9 Liters
b)
2355 Liters
c)
0.0630 Liters
d)
15.9 Liters
34.
When 0.250 moles of a gas is placed in a container at 25 °C, it exerts a pressure of 700 mm Hg. What is the volume of the container?
a)
0.557 Liters
b)
6.57 Liters
c)
8.74 Liters
d)
0.0087 Liters
35.
A 7.50 liter sealed jar at 18 °C contains 0.125 moles of oxygen and 0.125 moles of nitrogen gas. What is the pressure in the container?
a)
7.38 atm
b)
0.796 atm
c)
0.684 atm
d)
0.398 atm
36.
How many significant figures does the following number have: 2001800.
a)
1
b)
4
c)
6
d)
7
37.
How many significant figures does the following number have: 100.00210
a)
7
b)
5
c)
10
d)
8
38.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
39.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
40.
How many significant figures does 1.90 × 10^8 have?
a)
3
b)
4
c)
6
d)
8
41.
The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?
a)
1.54 x 1012 m
b)
1.54 x 10-12 m
c)
1.54 x 1010 m
d)
1.54 x 10-10 m
42.
How much energy is required to make 10.0 grams of aluminum melt?
a)
4000 J
b)
6500 J
c)
10.0 J
d)
10,500 J
43.
How many Joules of energy are required to change 10.0 grams of water from 20.0°C to 110.0°C?
a)
36,000 J
b)
23,450 J
c)
1,800 J
d)
3,600 J
44.
200.0 grams of 150°C aluminum is dropped into 100.0 grams of 20.0°C unknown liquid. The final resting temperature is 50.0°C. What is the specific heat of liquid B?
a)
6.667 J/g°C
b)
6000 J/g°C
c)
0.500 J/g°C
d)
1 J/g°C
45.
How many Joules of energy are required to change 10.0 gram of water from 20.0°C to 90.0°C?
a)
1400 J
b)
2800 J
c)
210,000 J
d)
1,400,000 J
46.
If an AM radio station broadcasts at 995 kHz, what is the wavelength of this radiation?
a)
6.59 x 10^-28 m
b)
1.01 x 10^-6 m
c)
3.32 x 10^-3 m
d)
301 m
47.
High frequency waves have _________ wavelength.
a)
varying
b)
high
c)
the same
d)
low
48.
Which has the longest wavelength?
a)
microwave
b)
infrared
c)
ultraviolet
d)
x-ray
49.
Which of the following electromagnetic waves is given off as heat?
a)
Radio Waves
b)
Infrared Rays
c)
Visible Light
d)
Gamma Rays
50.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
51.
A common infrared laser operates at 1.06 x 103 nm. What if the energy of a photon with this wavelength?
a)
7.02 x 10^-40 J
b)
6.25 x 10^-28 J
c)
3.54 x 10^-15 J
d)
1.87 x 10^-19 J
52.
Sodium has an atomic number of 11, how many protons does this atom have?
a)
22
b)
11
c)
12
d)
2
53.
Which subatomic particle along with the protons make up the total mass of an atom.
a)
Neutron
b)
Electrons
c)
Valence electrons
d)
protons make up all the mass
54.
A stable element with 27 electrons will contain how many protons?
a)
27 protons in the electron cloude
b)
59 protons in the extremely dense nucleus
c)
27 protons in the extremely dense nucleus
d)
59 protons in the electron cloud
55.
What is the atomic number of this nucleus?
a)
1
b)
3
c)
4
d)
7
56.
What is the mass number of this nucleus?
a)
1
b)
3
c)
4
d)
7
57.
This particle is found in the nucleus and has no charge
a)
Neutron
b)
Proton
c)
Electron
58.
This particle is found in the nucleus and has a positive charge
a)
Electron
b)
Proton
c)
Neutron
59.
1. The flammability of a substance is
a)
A. a chemical property.
b)
B. related to the density
c)
C. a physical property.-
d)
D. changeable.
60.
4. 1. What is a pure substance made of two or more elements that are chemically combined called?
a)
A. element
b)
B. compound
c)
C. mixture
d)
D. solution
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