Prepdog.org
Prepdog test logo
 






Name:
     ID: 
 
Email: 

9th Grade Chemistry Practice Test 2

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Identify the type of reaction for the following chemical equation:
CaCO3(s) --->  CaO(s) + CO2(g)  
a.
decomposition
c.
double replacement
b.
single replacement
d.
synthesis
 

 2. 

Identify the type of reaction for the following chemical equation:
2Na(s) + 2H2O(l) ---> 2NaOH(aq) + H2(g) 
a.
single replacement
c.
double replacement
b.
synthesis
d.
decomposition
 

 3. 

All of the following are acids EXCEPT
a.
vinegar
c.
soda pop
b.
ammonia
d.
lemon juice
 

 4. 

Thanks to NASA, scientists have found an arsenic based microorganism living in Mono Lake, California.  For the rest of the organisms on Earth, they are all made up of carbon based molecules called
a.
organic compounds
c.
inorganic compounds
b.
ionic bonds
d.
solvents
 

 5. 

Boiled purple cabbage water will turn acids red and bases blue and green.  This type of liquid is called a(n)
a.
indicator
c.
catalyst
b.
inhibitor
d.
neutralizer
 

 6. 

Which of the following is an example of a chemical change?
a.
Water freezing in winter into ice
c.
Burning a log of wood
b.
Copper metal being drawn into wires
d.
Mixing salt and water
 

 7. 

A neutron has a
a.
positive charge
c.
negative charge
b.
neutral charge
 

 8. 

Carbon is able to form covalent bonds to many other elements due to the number of valence electrons it has
a.
3
c.
4
b.
1
d.
2
 

 9. 

An atom that has the same  atomic number but a different number of neutrons is called a(n)
a.
quark
c.
isotope
b.
ion
d.
gluon
 

 10. 

mc010-1.jpg
Place the liquids, contained in the graduated cylinder, in order of most dense to least dense.
a.
abcdef
c.
abefcd
b.
cbafed
d.
fedcba
 

 11. 

You notice that your front lawn (Kentucky Bluegrass) is a light green color in all areas except for the dark green spots where your dog has urinated.  You take a pH reading of the soil below the grass and it shows a pH of “8”. 
a.
The soil contains too acidic
c.
The soil is neutral
b.
The soil contains too basic
 

 12. 

One substance is changed into two different substances
a.
physical change
c.
chemical change
b.
no change
 

 13. 

Identify the type of reaction for the following chemical equation:
Mg(s) + H2O(g) --->  MgO(s) + H2(g)
a.
single replacement
c.
decomposition
b.
synthesis
d.
double replacement
 

 14. 

Which radiation type emits waves and does not form a new element?
a.
alpha
c.
gamma
b.
delta
d.
beta
 

 15. 

The maximum number of electrons that can be filled in the first valence shell or energy level is
a.
2
c.
1
b.
8
d.
4
 

 16. 

Which of the following is an isotope of an atom with 8 protons and 8 neutrons?
a.
9 protons, 8 neutrons, 9 electrons
c.
8 protons, 9 neutrons, 9electrons
b.
16 protons, 16 neutrons, 8 electrons
d.
8 protons, 8 neutrons, 8 electrons
 

 17. 

Identify the type of reaction for the following chemical equation:
Fe(s) + CuSO4(aq) ---> FeSO4(aq) + Cu(s)
a.
double replacement
c.
synthesis
b.
decomposition
d.
single replacement
 

 18. 

Which solutions are in the correct order of acid to base?
a.
bleach, vinegar, water
c.
vinegar, water, bleach
b.
vinegar, bleach, water
d.
water, vinegar, bleach
 

 19. 

Saturated hydrocarbons, such as gasoline or petroleum, contain carbon and hydrogen.  These bonds are
a.
single, double, and triple
c.
double (C=H) only
b.
single (C-H) only
d.
Triple (C=H)
 

 20. 

Identify the type of reaction for the following chemical equation:
MgO(s) + H2O(l) --->  Mg(OH)2(s) 
a.
combustion
c.
synthesis
b.
double replacement
d.
single replacement
 

 21. 

Identify the type of reaction for the following chemical equation:
2KOH + H2SO4 ---> K2SO4 + 2H2O
a.
synthesis
c.
single replacement
b.
double replacement
d.
decomposition
 

 22. 

All of the following are bases EXCEPT
a.
vinegar
c.
bleach
b.
ammonia
d.
soap
 

 23. 

Hydrocarbons contain
a.
Hydrogen and Carbon
c.
Helium and Carbon
b.
Iron and Carbon
d.
Oxygen and Carbon
 

 24. 

If a stable atom has 3 protons and 4 neutrons how many electrons will it have?
a.
3
c.
1
b.
4
d.
7
 

 25. 

Which of the following is an example of a physical change?
a.
A snowman melting in the Sun

c.
Rusting nail
b.
Frying an egg
d.
Moldy cheese
 

 26. 

All of the following are acids EXCEPT
a.
NaOH
c.
H2SO4
b.
HCl
d.
HNO3
 

 27. 

The Nobel gases do not react with other elements because
a.
they have multiple oxidation numbers
c.
there is only one branch on their tree
b.
they need to gain electrons but not protons
d.
they have 8 or 2 valence electrons
 

 28. 

Identify the indicator below.
a.
purple cabbage
c.
lemon juice
b.
soap
d.
bleach
 

 29. 

Which numbers balance the equation:    ___H2+ ___O2 ---> ___ H2O
a.
1,2,1
c.
1,1,1
b.
2,2,2
d.
2,1,2
 

 30. 

If a stable atom has 4 electrons and 5 neutrons, how many protons does it have?
a.
1
c.
4
b.
9
d.
5
 

 31. 

The discovery of a nucleus and the empty space between the nucleus and the electron shell ,using goold foil and radiation, was made by
a.
Newton
c.
Wegner
b.
Rutherford
d.
Einstein
 

 32. 

If two atoms have opposite charges the atoms will
a.
magentize
c.
attract
b.
ionize
d.
repel
 

 33. 

mc033-1.jpg
A student measures a rock to be 10 grams, find the density of the rock by measuring the displacement of water before and after a rock is placed in a graduated cylinder.
a.
2 g/ml
c.
.5 ml/g
b.
5 g
d.
50 gml
 

 34. 

All of the following are examples of acids EXCEPT
a.
sour taste
c.
releases hydrogen ions
b.
releases hydroxide ions
d.
corrosive
 

 35. 

Measuring the force of gravity on a given mass is called
a.
density
c.
volume
b.
mass
d.
weight
 

 36. 

Identify the type of reaction for the following chemical equation:
2 Na(s) + Cl2(g) ---> 2NaCl(s) 
a.
synthesis
c.
double replacement
b.
single replacement
d.
combustion
 

 37. 

Anything that has mass and takes up space
a.
electrons
c.
matter
b.
protons
d.
temperature
 

 38. 

A proton has a
a.
positive charge
c.
negative charge
b.
neutral charge
 

 39. 

Which tool is used to detect radiation?
a.
Geiger counter
c.
Voltmeter
b.
pH indicator
d.
Ampmeter
 

 40. 

An electron has a
a.
negative charge
c.
positive charge
b.
neutral charge
 

 41. 

If two atoms have a negative charge the atoms will
a.
ionize
c.
attract
b.
repel
d.
magnetize
 

 42. 

Carbon forms many different molecules in nature, this is due to the ability to form covalent bonds because it has
a.
4 valence electrons
c.
2 valence electrons
b.
12 valence electrons
d.
6 valence electrons
 

 43. 

Identify the base.
a.
NaOH
c.
HCl
b.
H2SO4
d.
HNO3
 

 44. 

The subatomic particles found in a nucleus are
a.
neutrons and protons
c.
protons and electrons
b.
neutrons
d.
neutrons and electrons
 

 45. 

The maximum number of electrons that can be filled in the second valence shell or energy level is
a.
1
c.
2
b.
4
d.
8
 

 46. 

The amount of matter in an object is called
a.
density
c.
mass
b.
volume
d.
weight
 

 47. 

Atomic number represents the number of
a.
quarks
c.
neutrons
b.
gluons
d.
protons
 

 48. 

Identify the correct valence shell configuration for the first three energy levels for Nitrogen (N)
a.
0, 2, 5
c.
2, 2, 3
b.
2, 5, 0
d.
1, 2, 4
 

 49. 

A sour tasting candy with a pH of 2 is most likely
a.
acidic
c.
neutral
b.
basic
 

 50. 

mc050-1.jpgAll of the diagrams above are an example of
a.
helium isotopes
c.
Helium ions
b.
hydrogen ions
d.
carbon atoms
 

 51. 

Every carbon based life form dies and leaves Carbon-14 to decay into Nitrogen-14.  The radiation emitted from this process is called a(n)
a.
quark
c.
alpha particle
b.
beta particle
d.
gamma particle
 

 52. 

To change a hydrangea flower bloom to a pink color the soil must be a pH of 6.0 - 6.2, which of the following would you add to a soil that has a neutral soil?
mc052-1.jpg
a.
soda pop
c.
soap
b.
ammonia
d.
toothpaste
 

 53. 

Atomic mass is
a.
protons + neutrons
c.
protons
b.
neutrons
d.
protons + electrons
 

 54. 

A substance changes size, shape, and how fast the atoms vibrate.
a.
chemical change
c.
no change
b.
physical change
 

 55. 

As the elements move from left to right on the periodic table the protons
a.
is random
c.
increases
b.
decreases
d.
stays the same
 

 56. 

Which of the following is an example of a chemical change?
a.
a piece of metal rusting
c.
Dew drops condensing on a leaf at dawn
b.
A piece of rock heating up in the Sun
d.
Ice melting to form water
 

 57. 

Identify the acid.
a.
Ca(OH)2
c.
NH4OH
b.
HCl
d.
Mg(OH)2
 

 58. 

All of the following are bases EXCEPT
a.
HCl
c.
Ca(OH)2
b.
Mg(OH)2
d.
NH4OH
 

 59. 

Trout fish can handle a pH range of about 6.5 to 5.0, if you found dead trout floating in a pond and the pH is tested at a pH of 3. The pond is
a.
neutral
c.
basic
b.
acidic
 

 60. 

Which example is a base?
a.
vinegar
c.
soda pop
b.
ammonia
d.
lemon juice
 

 61. 

The night before a sports event we load up with sugars called _____________ to give us enough energy to compete the next day.
a.
lipids
c.
carbohydrates
b.
proteins
 

 62. 

Identify the type of reaction for the following chemical equation:
2NaCl + H2SO4 ---> Na2SO4 +2 HCl
a.
single replacement
c.
decomposition
b.
synthesis
d.
double replacement
 

 63. 

Which example is a property of a base?
a.
sour taste
c.
pH 1 - 6
b.
releases hydroxide ions
d.
releases hydrogen ions
 

 64. 

Cannot be destroyed or created, only changed into a different configuration
a.
mixture
c.
compound
b.
matter
 

 65. 

Identify the type of reaction for the following chemical equation:
Cl2(g) + 2NaBr(aq) --->  2NaCl(aq) + Br2(l)
a.
double replacement
c.
synthesis
b.
single replacement
d.
decomposition
 

 66. 

If you mixed vinegar with baking soda the result is a pH change to
a.
14
c.
7
b.
1
d.
3
 

 67. 

The resistance of any physical object to a change in its state of motion or rest
a.
mass
c.
acceleration
b.
velocity
d.
inertia
 

 68. 

Identify the type of reaction for the following chemical equation:
2Mg(s) + O2(g) --->  2MgO(s)
a.
double replacement
c.
synthesis
b.
single replacement
d.
combustion
 

 69. 

One acid in the human body is called an amino acid, these acids make up
a.
glucose
c.
lipids
b.
proteins
d.
carbohydrates
 

 70. 

If a stable atom has an atomic mass of 10 and 5 protons how many neutrons will it have?
a.
10
c.
15
b.
0
d.
5
 

Matching
 
 
Match the following
a.
nuclear fusion
c.
Coal burning
b.
nuclear fission
 

 71. 

Used to produce most of the electricity through out the United States
 

 72. 

used to produce nuclear energy
 

 73. 

combines elements lighter than iron
 

 74. 

occurs in the Sun and in nuclear bombs
 

 75. 

divides elements heavier than iron
 

 76. 

emits large amounts of greenhouse gases
 
 
Match the following with the correct element
a.
18 protons, 22 neutrons
d.
30 protons, 35 neutrons
b.
3 protons, 4 neutrons
e.
6 protons, 6 neutrons
c.
16 protons, 16 neutrons
 

 77. 

Zinc
 

 78. 

Carbon
 

 79. 

Argon
 

 80. 

Sulfur
 

 81. 

Lithium
 
 
Match the group with the correct oxidation number
a.
Group 1, Alkali Metals
e.
Group 5A, Nitrogen group
b.
Group 2, Alkaline Earth Metals
f.
Group 6A, Oxygen group
c.
Group 3A, Boron group
g.
Group 7A, Halogen group
d.
Group 4A, Carbon group
h.
Group 8A, Nobel Gases Group
 

 82. 

Neutral or 0 oxidation
 

 83. 

+3
 

 84. 

-3
 

 85. 

-1
 

 86. 

-2
 

 87. 

-4 or +4
 

 88. 

+2
 

 89. 

+1
 
 
Match the atomic number with the correct element
a.
Atomic number 1
e.
Atomic number 20
b.
Atomic number 5
f.
Atomic number 25
c.
Atomic number 10
g.
Atomic number 30
d.
Atomic number 15
h.
Atomic number 35
 

 90. 

Neon
 

 91. 

Bromine
 

 92. 

Phosphorus
 

 93. 

Boron
 

 94. 

Hydrogen
 

 95. 

Calcium
 

 96. 

Manganese
 

 97. 

Zinc
 
 
Match the following acid, base, or both.  If you can't remember click here for help.
a.
Acid
c.
Acid and Bases
b.
Base
 

 98. 

Has a bitter taste
 

 99. 

Contains H+ (Hydrogen ions) when dissolved in water
 

 100. 

Turns red litmus paper to blue
 

 101. 

Conducts electricity
 

 102. 

reacts with metals to form Hydrogen gas
 

 103. 

Soapy feel
 

 104. 

Turns blue litmus paper to red
 

 105. 

Greater than 7 on the pH scale
 

 106. 

Contains OH-  (Hydroxide ions)
 

 107. 

Sour taste
 

 108. 

Corrosive - will burn skin
 

 109. 

Less than 7 on the pH scale
 
 
Match the following symbols with the correct element
a.
Ca
e.
Li
b.
Fe
f.
Ne
c.
C
g.
W
d.
O
h.
N
 

 110. 

Calcium
 

 111. 

Carbon
 

 112. 

Tungsten
 

 113. 

Nitrogen
 

 114. 

Lithium
 

 115. 

Iron
 

 116. 

Oxygen
 
 
Match the following with the correct element
a.
Group 1, period 1
e.
Halogen, period 4
b.
Group 2, period 4
f.
Alkali metal, period 4
c.
Nobel Gas, period 3
g.
Alkaline earth metal, period 6
d.
Metalloid, period 2
 

 117. 

Boron
 

 118. 

Argon
 

 119. 

Bromine
 

 120. 

Potassium
 

 121. 

Barium
 

 122. 

Calcium
 

 123. 

Hydrogen
 
 
Match the following
a.
Strong acid
d.
Weak base
b.
Weak acid
e.
Strong base
c.
Neutral
 

 124. 

pH 7
 

 125. 

pH 8
 

 126. 

pH 14
 

 127. 

pH 1
 

 128. 

pH 6
 
 
grp009-1.jpgMatch the correct charges with the diagrams above
 

 129. 

negative 1 or -1
 

 130. 

positive 2 or +2
 

 131. 

neutral or = charge
 

 132. 

Positive 1 or +1
 
 
Match the states of matter according to molecular spacing and free electrons.
a.
grp010-1.jpg
c.
grp010-3.jpg
b.
grp010-2.jpg
d.
grp010-4.jpg
 

 133. 

plasma
 

 134. 

gas
 

 135. 

solid
 

 136. 

liquid
 
 
Match the following change of states
a.
melting
d.
condensation
b.
evaporation
e.
sublimation
c.
freezing
 

 137. 

gas to a liquid
 

 138. 

solid to a gas
 

 139. 

solid to liquid
 

 140. 

liquid to a solid
 

 141. 

liquid to a gas
 
 
Match the physical properties of matter
a.
ability to conduct heat
d.
solids dissolve in a liquid
b.
solid, liquid, gas, plasma
e.
the ability of a material to be elongated in tension
c.
the amount of mass in a given volume
f.
capable of being extended or shaped by beating with a hammer
 

 142. 

density
 

 143. 

malleability
 

 144. 

thermal conductivity
 

 145. 

states of matter
 

 146. 

ductility
 

 147. 

solubility
 
 
grp013-1.jpg
Match the radiation type with the correct penetration above
a.
“A” will not penetrate paper
c.
“C” will not penetrate lead
b.
“B” will not penetrate aluminum foil
 

 148. 

Alpha
 

 149. 

Gamma
 

 150. 

Beta
 



 
         Start Over