The Properties of Matter

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Chapter 2
The Properties of Matter
Preview
CRCT Preparation
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CRCT Preparation
Chapter 2
1. Look at the table. Which of the following
statements about mercury is true?
A It is the densest gas listed. B Its density is
less than the density of water. C It is a solid
at 20C and 1.0 atm. D It is the densest
substance listed.
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CRCT Preparation
Chapter 2
1. Look at the table. Which of the following
statements about mercury is true?
A It is the densest gas listed. B Its density is
less than the density of water. C It is a solid
at 20C and 1.0 atm. D It is the densest
substance listed.
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CRCT Preparation
Chapter 2
2. A substance in the table has a mass of 10 g
and a volume of 10 cm3. What is the substance? A
mercury B oxygen C water D helium
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CRCT Preparation
Chapter 2
2. A substance in the table has a mass of 10 g
and a volume of 10 cm3. What is the substance? A
mercury B oxygen C water D helium
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CRCT Preparation
Chapter 2
3. When oxygen in the air reacts with iron, iron
oxide forms. Which statement is correct? A This
is a physical change. B This is a chemical
change. C Iron and iron oxide have the same
properties. D Oxygen and iron have similar
properties.
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CRCT Preparation
Chapter 2
3. When oxygen in the air reacts with iron, iron
oxide forms. Which statement is correct? A This
is a physical change. B This is a chemical
change. C Iron and iron oxide have the same
properties. D Oxygen and iron have similar
properties.
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CRCT Preparation
Chapter 2
4. Which of the following statements about
chemical properties is true? A They can be
observed when the identity of a substance
changes. B They can always be observed without
changing the identity of a substance. C They are
easier to observe than physical properties. D
They are the properties that are most useful in
identifying a substance.
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CRCT Preparation
Chapter 2
4. Which of the following statements about
chemical properties is true? A They can be
observed when the identity of a substance
changes. B They can always be observed without
changing the identity of a substance. C They are
easier to observe than physical properties. D
They are the properties that are most useful in
identifying a substance.
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CRCT Preparation
Chapter 2
5. A chemical change takes place during a
laboratory investigation of the properties of
magnesium. Which of the following may have been
observed? A Magnesium burns in the presence of
oxygen. B Magnesium melts at 649C. C Magnesium
becomes malleable when it is heated. D Magnesium
conducts an electric current.
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CRCT Preparation
Chapter 2
5. A chemical change takes place during a
laboratory investigation of the properties of
magnesium. Which of the following may have been
observed? A Magnesium burns in the presence of
oxygen. B Magnesium melts at 649C. C Magnesium
becomes malleable when it is heated. D Magnesium
conducts an electric current.
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CRCT Preparation
Chapter 2
6. Which of the following statements describes a
chemical change? A Clear water turns red after a
dye is added. B Ice melts. C Salt dissolves in
water. D Milk sours.
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CRCT Preparation
Chapter 2
6. Which of the following statements describes a
chemical change? A Clear water turns red after a
dye is added. B Ice melts. C Salt dissolves in
water. D Milk sours.
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CRCT Preparation
Chapter 2
7. Max drops one effervescent tablet into a
beaker of water and places an identical tablet on
the lab table. He observes bubbles of gas form on
the surface of the first tablet. The bubbles rise
and break on the surface of the water. After
several minutes, no more bubbles form and the
tablet is not visible in the water. The tablet on
the lab table is unchanged. What conclusion
should Max draw from his observations? A The
tablet that was placed in the water changed
directly into a gas through a physical change. B
The tablet that was placed in the water broke
down when exposed to light and formed a gas
through a chemical change. C The tablet that
was placed in the water caused dissolved gases in
the water to be released through a physical
change. D The tablet that was placed in the water
interacted with the water to form a gas through a
chemical change.
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CRCT Preparation
Chapter 2
7. Max drops one effervescent tablet into a
beaker of water and places an identical tablet on
the lab table. He observes bubbles of gas form on
the surface of the first tablet. The bubbles rise
and break on the surface of the water. After
several minutes, no more bubbles form and the
tablet is not visible in the water. The tablet on
the lab table is unchanged. What conclusion
should Max draw from his observations? A The
tablet that was placed in the water changed
directly into a gas through a physical change. B
The tablet that was placed in the water broke
down when exposed to light and formed a gas
through a chemical change. C The tablet that
was placed in the water caused dissolved gases in
the water to be released through a physical
change. D The tablet that was placed in the water
interacted with the water to form a gas through a
chemical change.
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CRCT Preparation
Chapter 2
8. Which physical property can be used to
classify oxygen, helium, propane, and hydrogen as
being similar? A flammability B state C
reactivity D malleability
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CRCT Preparation
Chapter 2
8. Which physical property can be used to
classify oxygen, helium, propane, and hydrogen as
being similar? A flammability B state C
reactivity D malleability
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CRCT Preparation
Chapter 2
9. In an experiment that compares the densities
of liquids, you must analyze the beaker shown
above. Which statement best describes how the
densities of the liquids compare?
A Liquid M is more dense than Liquid N. B Liquid
N is more dense than Liquid L. C Liquid L is more
dense than either Liquid M or Liquid N. D Liquid
M is more dense than either Liquid L or Liquid N.
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CRCT Preparation
Chapter 2
9. In an experiment that compares the densities
of liquids, you must analyze the beaker shown
above. Which statement best describes how the
densities of the liquids compare?
A Liquid M is more dense than Liquid N. B Liquid
N is more dense than Liquid L. C Liquid L is more
dense than either Liquid M or Liquid N. D Liquid
M is more dense than either Liquid L or Liquid N.
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CRCT Preparation
Chapter 2
10. Two balls are made of solid, white plastic.
Both balls have the same diameter. One ball has
twice the mass of the other. What can you
conclude that would explain this difference?
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CRCT Preparation
Chapter 2
10. Answer - Full-credit answers should include
the following points If the two plastic balls
have the same volume but one has twice the mass
of the other, then the plastic that forms them
must have different densities. If the plastics
have different densities, then they are different
materials.
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CRCT Preparation
Chapter 2
11. What chemical properties would be important
to consider when choosing a material to make a
safe baking dish?
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CRCT Preparation
Chapter 2
11. Answer - Full-credit answers should include
the following points Because the object will
be regularly used at very high temperatures, it
should not burn. Because the object must be
washed between uses, it should not react with
water. Because the object will hold food
products, it should not be very reactive.