Chapter 2
The Properties of Matter
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Chapter 2
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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 20°C
and 1.0 atm.
D It is the densest
substance listed.
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Chapter 2
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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 20°C
and 1.0 atm.
D It is the densest
substance listed.
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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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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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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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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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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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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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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 649°C.
C Magnesium becomes malleable when it is heated.
D Magnesium conducts an electric current.
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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 649°C.
C Magnesium becomes malleable when it is heated.
D Magnesium conducts an electric current.
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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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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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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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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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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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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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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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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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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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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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11. What chemical properties would be important to
consider when choosing a material to make a safe
baking dish?
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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.
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