Chemistry Diagnostic Test 1. According to the Periodic Table of the Elements, which element is most
similar to calcium (Ca)?
o
o
o
o
A magnesium (Mg)
B iodine (I)
C sodium (Na)
D sulfur (S)
2. When chemical A is placed in a specific liquid, the chemical breaks down
into B & C. It is not possible to break substances B & C into simpler
particles.
Which of the following statements is best supported by this evidence?
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o
o
o
A Chemical A is an element.
B Chemical A dissolves in water.
C Substances B & C are elements
D Substances B & C are molecules
3. Which statement describes the motion of the molecules within water when
enough heat energy is added to boil the carpet cleaner?
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o
o
o
A The molecules stop moving.
B The molecules move more slowly.
C The molecules move more quickly.
D The molecules begin moving at a constant rate.
4. A scientist is examining a large piece of the mineral called calcium. The
scientist finds that the calcium is a 100% pure sample. Based on these
facts, which of the following would be true?
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o
o
o
A sample is a compound because there are more than one atom of Ca
B sample cannot be a compound because there is only one element
C sample is a compound because the atoms of Ca are bonded together
D sample cannot be a compound because there is no chemical reaction
5. Which of the following have only one atom of Oxygen?
o
o
o
o
A H2 O
B C6H12O6
C O2
D 2(H2O)
6. Which of the following can be identified as a compound?
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o
o
o
A Xe
B Fe
C O
D C6H12O6
7. As water condenses, within the atmosphere, it forms clouds. Which of the
following choices best describes the water molecules as the clouds are
forming?
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o
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A slowing down
B speeding up
C not moving
D far apart
8. Water is poured into an ice tray and placed in a freezer. Which of the
following best describes what will happen to the molecules of water?
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o
o
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A The molecules will speed up in motion
B The molecules will not change in movement
C The molecules will slow down in movement
D The molecules will get speed up and get further apart
9. How does adding heat energy affect glucose (C6H12O6) molecules?
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o
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A The motion of the molecules stop
B The motion of the molecules decrease
C The motion of the molecules remain constant
D The motion of the molecules increase
HOW TEMPERATURE AFFECTS STATES OF MATTER
Substances
State of Material at
Room Temperature
(220 C)
State of Matter when
Heated
syrup
Liquid
Liquid
water
Liquid
Gas
milk
Liquid
Liquid
10. The information in the table indicates that
o
o
o
o
A temperatures physically change matter
B temperatures chemically change matter
C the atoms slow down when heated
D the atoms in matter are not affected when heated
11. Mr. Diaz has decided to chlorinate his pool, but the instructions ask for the
amount of water within his pool. Mr. Dias multiplies the height of the pool
by the width by the length. Which choice describes what Mr. Diaz is
looking for?
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o
o
o
A density
B mass
C weight
D volume
12. Aaron and his classmates are testing different minerals in a laboratory at
school. Aaron’s teacher shows the class how to perform a streak test
using a porcelain plate. Using the streak test to determine hardness of a
mineral is indicating what kind of property?
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o
o
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A chemical
B molecular
C atomic
D physical
Directions
Use the information below to answer Numbers 13 through15.
Substance
Color of
Solution
Melting
Point
(0C)
Boiling
Point
(0C)
Soluble
in Water
A
Clear
0
100
Yes
Weak
5
B
Clear
-2
118
Yes
Strong
8
C
Clear
-1
93
Yes
Weak
5
D
Clear
0
100
Yes
Strong
5
Odor
pH Test
13. Which physical property best classifies substance “B” in a separate group
of substances from substance “C”?
o
o
o
o
A Boiling point
B melting point
C color
D solubility
14. Which conclusion is supported by the data from the investigation?
o
o
o
o
A Many of these substances are soluble in water
B substances with weak odor are acids
C water is the main ingredient in all of the substances
D as the temperature rises, the molecular motion slows down
15. Which chemical property sets substance “B” apart from the rest of the
substances?
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o
o
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A solubility
B odor
C pH
D color
16. A student has 10 liters of cotton balls and 10 liters of sand.
Which statement best compares the masses of the two samples?
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o
o
o
A The masses cannot be compared without a scale.
B The mass of the cotton balls is less than the mass of the sand.
C The mass of the cotton balls is the same as the mass of the sand.
D The mass of the cotton balls is greater than the mass of the sand.
17. Joe has a jar of buttons coins and nails. Joe tells his mother that the jar is
a mixture. Which of the following choices best describes why Joe is
correct?
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o
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o
A Each object in Joe’s jar is touching another object
B There is a chemical reaction between the objects
C Each object within Joe’s jar is retaining its own identity
D There are physical reactions between the objects
18. Sarah and her mother prepare to bake a cake. Sarah and her mother set
aside all of the ingredients which includes eggs, milk, flour, and cake mix.
After mixing all of the ingredients, the cake is baked in the oven. Which
choice best describes the cake?
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o
o
o
A The cake is a mixture
B The cake is a compound
C The cake has not gone through chemical changes
D The cake ingredients can be separated easily
19. A student is instructed to separate a solution of water and sugar. Which of
the following would be the best way to separate the mixture?
o
o
o
o
A Place the solution in a beaker and evaporate the water
B Pour the solution through filter paper
C Pour the solution through a screen
D Freeze the water and separate the sugar
20. Gasoline within an automobile combusts when a sparkplug fires. The fact
that the gasoline combusts is best described as which of the following?
o
o
o
o
A Physical Property
B Explosion
C Chemical Property
D Molecular Breakdown
21. When light energy, water, and carbon dioxide are combined during
photosynthesis, it is considered a chemical change. The amount of carbon
found in the glucose compared to the amount found in the carbon dioxide
can best be described as?
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o
o
o
A Twice the amount
B Half the amount
C Same amount
D Twelve times the amount
22. A police officer is investigating a shooting. A suspect’s hand is tested for
any “gun-shot residue”. Which of the following best describes what the
police officer is testing the suspect’s hand for?
o
o
o
o
A Physical Properties
B Chemical Properties
C Acid
D Base
23. How do the elements carbon, hydrogen, and oxygen produce the
compound glucose?
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o
o
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A magnetic connection
B physically connecting
C nuclear connection
D chemically combining