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WorksheetsChemistry Semester 1 Review
Total questions: 37
Worksheet time: 19mins
Name
Class
Date
1.
Which of the following is the correct formula for calculating percent error?
a)
(Theoretical value) / (Experimental value) x 100
b)
(Experimental value) / (Theoretical value) x 100
c)
( | Difference between theoretical & Experimental values | / Theoretical value) x 100
d)
( | Difference between theoretical & Experimental values | / Experimental value) x 100
2.
Which of the following represents values that are precise, but not accurate? Assume that the desired value is a bullseye.
a)
A
b)
B
c)
C
d)
D
3.
Which of the following represents values that are neither accurate nor precise? Assume that the desired value is a bullseye.
a)
A
b)
B
c)
C
d)
D
4.
How many total atoms are in the formula below?
2Pb(SO4)2
2Pb(SO4)2
a)
10
b)
11
c)
22
d)
18
5.
In the notation given, which variable represents the mass number?
a)
A
b)
Z
c)
X
d)
A - Z
6.
In the notation given, which variable represents the number of neutrons?
a)
A
b)
Z
c)
X
d)
A - Z
7.
Which subatomic particles contribute to the mass of an atom?
a)
protons only
b)
protons & electrons
c)
neutrons only
d)
protons & neutrons
8.
Which wave has the highest energy?
a)
A
b)
B
c)
D
d)
E
9.
Which wave has the longest wavelength?
a)
A
b)
B
c)
D
d)
E
10.
Which wave has the highest frequency?
a)
A
b)
B
c)
D
d)
E
11.
Which statement correctly describes the relationship between frequency and wavelength?
a)
As frequency decreases, wavelength decreases
b)
As frequency increases, wavelength decreases
c)
As frequency increases, wavelength increases
d)
frequency and wavelength are independent of one another
12.
Which orbital is pictured here?
a)
s
b)
p
c)
d
d)
f
13.
Which orbital is pictured here?
a)
s
b)
p
c)
d
d)
f
14.
Which of the following represents the trend for metallic character (reactivity)?
a)
increases to the top right of the periodic table
b)
increases to the top left of the periodic table
c)
increases to the bottom right of the periodic table
d)
increases to the bottom left of the periodic table
15.
Which of the following elements has the greatest metallic character (reactivity)?
a)
Calcium
b)
Cesium
c)
Lithium
d)
Fluorine
16.
Which of the following elements would require the most energy to remove a valence electron?
a)
Lithium
b)
Boron
c)
Nitrogen
d)
Fluorine
17.
Which of the following elements has the lowest first ionization energy?
a)
Lithium
b)
Boron
c)
Nitrogen
d)
Fluorine
18.
Which of the following elements has the largest atomic radius?
a)
Sodium
b)
Potassium
c)
Chlorine
d)
Bromine
19.
Which of the following elements has the largest electronegativity value?
a)
Sodium
b)
Potassium
c)
Chlorine
d)
Bromine
20.
Which of the following is the term given to the amount of energy required to remove an electron from an atom?
a)
atomic radius
b)
ionic radius
c)
ionization energy
d)
electronegativity
21.
Which of the following is the term given to the ability of an atom to attract an electron in a bond?
a)
atomic radius
b)
ionic radius
c)
ionization energy
d)
electronegativity
22.
100 grams of a certain compound, XY, contains 65 grams of X. What is the percent composition of Y?
a)
65%
b)
35%
c)
50%
d)
cannot determine
23.
Which principle states that although it is impossible to determine the exact location of an electron, you can determine the probability that an electron will occupy a certain region.
a)
Pauli Exclusion Principle
b)
Hund's Rule
c)
Heisenberg Uncertainty Principle
d)
Aufbau Principle
24.
Which principle states that if two electrons occupy the same orbital they must have opposite spins?
a)
Pauli Exclusion Principle
b)
Hund's Rule
c)
Heisenberg Uncertainty Principle
d)
Aufbau Principle
25.
Because gas particles are relatively far apart
a)
they can be easily compressed
b)
they move at very high speeds
c)
they have low temperatures
d)
they experience attractive forces
26.
When performing ALL gas law calculations, which of the following is true?
a)
Any combination of units can be used
b)
Volume must be in liters
c)
Pressure must be in atm
d)
Temperature must be in Kelvin
27.
As the temperature of a gas rises, which of the following will happen as a result when pressure is held constant?
a)
volume will increase proportionally
b)
volume will decrease proportionally
c)
volume will increase exponentially
d)
volume will decrease exponentially
28.
In order for particles to change phase, they must
a)
have more kinetic energy
b)
have less kinetic energy
c)
have greater mass
d)
have smaller mass
29.
At the boiling point of a substance
a)
A. particles are in a liquid-gas equilibrium
b)
B. particles enter the gas phase at the same rate as they enter the liquid phase
c)
C. all particles will be in the gas phase
d)
Both A & B
30.
When gas particles condense, which of the following is true?
a)
Gas particles must absorb energy
b)
Energy is released to allow particles to slow down
c)
The process is endothermic
d)
Attractive forces are decreased
31.
Which of the following processes is endothermic?
a)
melting
b)
freezing
c)
deposition
d)
condensation
32.
Which of the following processes requires particles to release energy in order to occur?
a)
boiling
b)
melting
c)
freezing
d)
sublimation
33.
Which of the following is NOT part of the kinetic molecular theory?
a)
The volume of a gas particle is negligible
b)
Particles do not experience attractive forces
c)
kinetic energy increases with temperature
d)
Collisions between particles are elastic
34.
Which of the following correctly identifies standard temperature and pressure (STP) values?
a)
0°C & 1 atm
b)
0 K & 1 atm
c)
0°C & 0 atm
d)
0 K & 0 atm
35.
Which section of the phase diagram represents the solid phase?
a)
A
b)
B
c)
C
d)
Cannot be determined
36.
Which combination of temperature and pressure would you expect to find all three states of matter in equilibrium?
a)
300 atm & 200°C
b)
6 atm & -15°C
c)
3 atm & -105°C
d)
This substance does not have a triple point
37.
Calorimetry is a laboratory technique used to
a)
separate solutions based on boiling point
b)
separate a mixture based on differences in particle size
c)
measure the absorbance of light
d)
measure heat transfer
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