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2024 Final EXAM Review Chemistry I

Total questions: 89

Worksheet time: 3hrs 57mins

Name
Class
Date
1.
What two types of atoms make a covalent bond?
a)
2 Nonmetals
b)
1 Nonmetal and 1 Metal
c)
2 Metals
d)
2 Noble Gases
2.

The name for the chemical formula AlCl3

a)

aluminum chlorine

b)

aluminide chloride

c)

aluminum trichloride

d)

aluminum chloride

3.
What is the formula for calcium phosphide?
a)
CaP
b)
Ca2P3
c)
Ca3P2
d)
Ca2P
4.
Which of the following is an ionic compound?
a)
CCl4
b)
CO2
c)
NO2
d)
CuCl2
5.
The compound created from the bond between lithium and oxygen would be called...
a)
Lithium oxate
b)
Lithium oxide
c)
Dilithium oxide
d)
Lithium peroxide
6.
The correct name for the salt with the formula CaI2 is
a)
calcium diodide
b)
calcium iodide
c)
calcium iodine
d)
dicalcium iodine
7.
What do atoms that form positive ions tend to do?
a)
Tend to lose electrons 
b)
Tend to lose protons
c)
Tend to gain electrons
d)
Tend to gain protons
8.
Name the following ionic compound: MgSO4
a)
magnesium sulfoxide
b)
magnesium sulfide
c)
magnesium sulfate
d)
magnesium oxide
9.
Name the following ionic compound: LiNO3
a)
lithium nitrate
b)
lithium III nitrate
c)
lithium nitride
d)
lithium oxide
10.

The correct name for the balanced formula NaC2H3O2:

a)

sodium carbohydroxide

b)

sodium carbonate

c)

sodium acetate

d)

sodium carbide

11.
The Law of Conservation of Mass states
a)
that matter exists in all states and reacts the same
b)
that matter can only be changed into new substances by introducing a catalyst
c)
that matter exists in the same state throughout any chemical change
d)
that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants
12.

When balancing an equation you can only add or adjust:

a)

coefficients

b)

subscripts

c)

parentheses

d)

exponents

13.
Which of the following shows the correct way to balance the chemical equation?
Fe + O2 -> Fe2O3
a)
4Fe + 3O2 -> 2Fe2O3
b)
2 Fe + 3O2 -> Fe2O6
c)
4 Fe + O6 -> 2Fe2O3
d)
None of the options are correctly balanced.
14.

Balance this equation...

H2 + Cl2 --> HCl

a)

It is balanced

b)

3H2 + Cl2 --> 6H2Cl

c)

H2 + Cl2 --> 2HCl

d)

unable to balance

15.

Identify this type of reaction,

Cl2 + 2KI --> I2 + 2KCl

a)

Synthesis

b)

Single replacement

c)

Double replacement

d)

Decomposition

16.
Cations are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
17.
Anions are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
18.
Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.
a)
6 cm3
b)
12 g/cm3
c)
128 g/cm3
d)
8  g/cm3
19.

A solution with a pH of 9.5 would be...

a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
20.
A solution with a pH of 3.6 would be...
a)
Acid
b)
Base
c)
Neutral
d)
Acid and Base
21.

What is the noble gas configuration for oxygen?

a)

[Ar] 3p⁴

b)

[He] 3s² 3p⁴

c)

[He] 2s² 2p⁴

d)

[Li] 2s² 2p⁴

22.

What happens to the energy of an electron as it moves from n=4 to n=2?

a)

energy is absorbed

b)

energy is released

c)

energy remains the same

d)

unable to determine

23.

What is the percent composition of oxygen in BaCrO₄?

a)

20.5%

b)

25.3%

c)

54.2%

d)

9.5%

24.

How many moles of silver atoms are in 1.8 x 10²⁴ atoms of silver?

a)

3.0 x 10¹ mol

b)

3.0 x 10⁻¹ mol

c)

3.0 mol

d)

1.1 x 10⁴⁴ mol

25.

What will occur when the substance transitions from B to A? (Diagram A)

a)

condensation

b)

evaporation

c)

melting

d)

freezing

26.

What will occur when the substance changes from 1 atm to 30 at a constant temperature of -15oC? (Diagram A)

a)

condensation

b)

deposition

c)

melting

d)

sublimation

27.

What letter on the diagram represents the substance only in the gas phase?

a)

A

b)

B

c)

C

d)

D

28.

What letter on the diagram represents the triple point?

a)

A

b)

B

c)

C

d)

D

29.

From C to D, what phase of matter is the substance?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

30.
A substance's heating curve is shown in the graph.  What is its boiling point?
a)
100 C
b)
60 C
c)
80 C
d)
20 C
31.
Look at this image.  Which object has the LOWEST density in water? How? 
a)
The Ping Pong Ball because it floats to the top 
b)
The bolt because it has sunk to the bottom
c)
The soda cap because it is not just full of air like the Ping Pong ball
32.
True or False:  The density of a specific type of material never changes.  
a)
True
b)
False
33.

1 mole of helium gas occupies what volume at STP?

a)

22.4 L

b)

0 °C

c)

1 atm

d)

4.00 L/mol

34.
How are Volume and Pressure related?
a)
Indirectly 
b)
Directly
c)
First-Cousins
d)
Constants
35.
How are Pressure and Temperature related?
a)
Inversely
b)
Directly
c)
Indirectly
d)
Constants
36.
What is the formula for Boyle's Law?
a)
P1V1=P2V2
b)
P1V1/P2V2
c)
P1V2=P2V1
d)
P1/V1=P2/V2
37.
What is the formula Charles' Law?
a)
V = T
b)
VT = VT
c)
T1 / V1 = T2 / V2
d)
V1 / T1 = V2 / T2
38.
What is the percent by mass of magnesium in MgO?
a)
20%
b)
40%
c)
50%
d)
60%
39.

What is the percent by mass of calcium in CaF2 ?

a)

24%

b)

49%

c)

51%

d)

65%

40.

What is the percent by mass of fluorine in CaF2?

a)

24%

b)

49%

c)

51%

d)

65%

41.
A newly synthesized ionic compound is placed in water to make an aqueous solution. Which best describes the new ionic solution? 
a)
The ionic solution conducts electricity. 
b)
The ionic solution dissolves nonpolar solutions. 
c)
The ionic solution cannot conduct electricity. 
d)
The ionic solution is a neutral solution. 
42.
What do the ions K1+, Ca2+, and Cl1− have in common? 
a)
They have the same number of protons. 
b)
They will form covalent bonds with oxygen. 
c)
They have the same electron configuration as argon. 
d)
They are larger than their corresponding atoms. 
43.
Which substance is most likely classified as a colloid?
a)
soft drink
b)
fog
c)
water
d)
oxygen gas
44.
Which element is a metalloid?
a)
Na
b)
N
c)
Ge
d)
K
45.
Which electron configuration belongs to Chlorine (Cl)?
a)
1s2 2s2 2p6 3s2 3p5
b)
1s2 2s2 2p6 3s2 3p6
c)
1s2 2s2 2p6 3s2 3p7
46.

How many molecules are in 2.5 mol of NaCl?

a)

1.51x1023

b)

146

c)

4.15

d)

1.51x1024

47.
What is the molar mass of (NH4)2O?
a)
34 g/mol
b)
33 g/mol
c)
49 g/mol
d)
50 g/mol
48.
Name BCl3
a)
boron chloride
b)
boron (III) chloride
c)
boron trichloride
d)
boron chlorine
49.

How many grams are in 1.2 moles of Neon?

a)

0.05 grams

b)

16.6 grams

c)

21.2 grams

d)

24.1 grams

50.
Which of the following equations represents the balanced synthesis reaction of iron (III) and oxygen?
a)
Fe + 3 O2 → Fe2O3
b)
3 Fe + 3 O2 → 2 Fe2O3
c)
2 Fe + O2 → Fe2O3
d)
4 Fe + 3 O2 → 2 Fe2O3
51.
Which type of reaction takes place in the presence of oxygen and produces carbon dioxide and water?
a)
double replacement 
b)
decomposition 
c)
combustion 
d)
single replacement
52.
The substances listed on the left side of a chemical equation are the
a)
Products
b)
Coefficients
c)
Precipitates
d)
Reactants
53.
What is the Law of Conservation of mass?
a)
Mass is created in a chemical reaction
b)
Mass is created in a physical change
c)
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
d)
Mass is never created or destroyed
54.
A chemical reaction is balanced when...
a)
Both sides have the same elements
b)
Both sides have the same number of atoms of each element
c)
Both sides have the same subscripts for each element 
d)
Both sides have the same coefficients for each compound/molecule
55.

If there are 18 H atoms on the reactant side, how many H atoms will be on the product side?

a)

8

b)

18

c)

10

d)

You need more information to answer this question

56.
2NO2 --> N2 + 2O2
a)
Synthesis
b)
Decomposition
c)
Single displacement
d)
Combustion
57.

2Fe + 3H2SO4 --> Fe2(SO4)3 + 2H2

a)

Synthesis

b)

Decomposition

c)

Single Replacement

d)

Combustion

58.
KOH + H3PO4 --> K3PO4 + H2O
a)
Synthesis (combination)
b)
Decomposition
c)
Single replacement
d)
Double replacement
59.
How many moles are in 16.94g of water?
a)
16.94
b)
0.9403
c)
305.2
d)
1.063
60.
What is the mass in grams of 5.90 mol C8H18?
a)
.0512 g
b)
19.4 g
c)
673 g
d)
389 g
61.
What are the units for molar mass?
a)
grams
b)
amu
c)
grams/mole
d)
liters
62.

What is the percent composition by mass of sulfur (S) in the compound MgSO4?

a)

20.22%

b)

19.85%

c)

26.64%

d)

28.64%

63.
How many atoms of carbon are in 6.00g of carbon?
a)
1.20x1024atoms C
b)
6.02x1023atoms C
c)
3.01x1023atoms C
d)
1.50x1023atoms C
64.
How many moles are in 22 g of argon? 
a)
880 moles
b)
0.55 moles
c)
1.81 moles
d)
5 moles
65.
What is the molar mass of table salt (NaCl)?
a)
116.886 g/mol
b)
35.453 g/mol
c)
22.990 g/mol
d)
58.443 g/mol
66.
What is the percent by mass of sodium in NaCl?
a)
39%
b)
61%
c)
35%
d)
65%
67.
The amount of energy required to raise the temperature 1ºC for every kilogram is called____?
a)
Thermal Energy
b)
Specific Heat
c)
Temperature
d)
Kinetic Energy
68.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
69.
Water has a specific heat of 4184 J/KgºC.  Wood has a specific heat of 1760 J/KgºC.  What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
70.
When a  piece of aluminum foil is taken out of the oven and cools from 100° C to 50°C, What is the change in temperature?
a)
50°
b)
0°
c)
100°
d)
150°
71.
What  is the formula to calculate heat energy required to raise the temperature of any substance?
a)
Q=mc∆t
b)
Q=mc
c)
Q= ½mv
d)
m=QC
72.

How many Joules of energy are required to make 100 grams of ice at 0 οC completely melt?

a)

200 J

b)

400 J

c)

33,400 J

d)

2,000,000 J

73.

How many joules are required to boil 75 grams of water?

a)

25050J

b)

169500J

c)

31350J

d)

10000J

74.

When do you use 2260 J/g? You may select more than one answer.

a)

if a substance is condensing

b)

if a substance is freezing

c)

if a substance is evaporating

d)

if a substance is melting

75.

When do you use 334 J/g? You may select more than one answer.

a)

if a substance is condensing

b)

if a substance is freezing

c)

if a substance is evaporating

d)

if a substance is melting

76.

How much heat is required to warm 275 g of water from 76C to 87C?

a)

12644J

b)

6322J

c)

25288J

d)

3161J

77.

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C?

a)

297 Joules

b)

0.003 Joules

c)

297 J/gx°C

d)

0.003 J/gx°C

78.

Which substance would heat up the fastest?

a)

aluminum

b)

water

c)

copper

d)

gold

79.
In an exothermic process, the surroundings are are gaining energy.
a)
True
b)
False
80.
A material was cooled from 100ºC to 40ºC.  What is the temperature change?
a)
60ºC
b)
40ºC
c)
-60ºC
d)
-40ºC
81.

What is 50oC in Kelvin?

a)
223
b)
323
c)
100
d)
50
82.
A gas occupies 4.98 L at 2.6 atm of pressure. What volume does it occupy at 1.8 atm pressure?
a)
12.9 L
b)
0.72 L
c)
7.2 L
d)
3.44 L
83.
What is the new volume of the gas if the pressure on 350 L of oxygen at 720 mm Hg is decreased to 600 mm Hg?
a)
420 L
b)
29.16 L
c)
4200.0 L
d)
291.6 L
84.
Edelman and Gronkowski want to play a game of beach volleyball. If the beach ball has a volume of  261 L at a temperature of 502 K, what will the temperature of the balloon be if the volume decreases to 176 L?
a)
744 K
b)
0.0030 K
c)
339 K
d)
512 K
85.
There are 40 liters of helium in a balloon at 100 K. If the temperature of the balloon is increased to 200 K, what will the new volume of the balloon be?
a)
80 L
b)
45 L
c)
54 L
d)
45.33 L
86.
The gas in an aerosol can exerts a pressure of 3.00 atm at 25°C. Directions on the can warn the user not to keep the can in a place where the temperature exceeds 100°C. What would the gas pressure in the can be at 100°C?
a)
3.76 atm
b)
2.40 atm
c)
12 atm
d)
0.75 atm
87.

A gas container is initially at 47 mmHg and 77 K. What will the pressure be when the container warms up to standard temperature?

a)

181 mmHg

b)

15 mmHg

c)

121 mmHg

d)

14 mmHg

88.
Calculate the volume that a 0.323-mol sample of a gas will occupy at 265 K and a pressure of 0.900 atm.
a)
7.18 L 
b)
7.81 L
c)
4.63 L
d)
4.36 L
89.

What is the pressure in atmospheres of a 0.108-mol sample of helium gas at a temperature of 20.0 oC if its volume is 0.505 L?

a)

90.7 atm

b)

22.4 atm

c)

29.3 atm

d)

5.14 atm

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