Question 1

A fishing boat accidentally spills 3.0 barrels of diesel oil into the ocean.Each barrel contains 42 gallons.If the oil film on the ocean is 2.5 × 102 nm thick,how many square meters will the oil slick cover?

Accepted Answer

A)   1.9 × 10-3 m2
B)   1.9 × 106 m2
C)   1.9 × 107 m2
D)   none of theseE) All of the above
F) A) and B)

Question 2

What symbol is used to represent the factor 10-2?

Accepted Answer

A)   M
B)   m
C)   μ
D)   cE) B) and C)
F) A) and B)

Question 3

If the temperature is 228°F,what is the temperature in degrees Celsius?

Accepted Answer

A)   442.4°C
B)   501°C
C)   108.9°C
D)   -45°C
E)   428°CF) A) and B)
G) A) and C)

Question 4

How many significant figures are in the measurement,31.600 m?

Accepted Answer

A)   3
B)   4
C)   5
D)   1
E)   2F) B) and E)
G) A) and C)

Question 5

Osteoporosis is a condition in which the bone density becomes low.Healthy bones in young adults have a bone density of 1.0 g/cm3.Identify the incorrect statement.

Accepted Answer

A)   Compression of the vertebrae can be caused by osteoporosis.
B)   Low density bones absorb less x-ray than high density bones.
C)   A bone density of 1.5 g/cm3 is caused by osteoporosis.
D)   Exercise decreases osteoporosis.
E)   Patients with osteoporosis are more susceptible to fractures.F) A) and B)
G) D) and E)

Question 6

A physical change

Accepted Answer

A)   occurs when iron rusts.
B)   occurs when sugar is heated into caramel.
C)   occurs when glucose is converted into energy within your cells.
D)   occurs when water is evaporated.
E)   occurs when propane is burned for heat.F) A) and D)
G) B) and E)

Question 7

How many significant figures are in the measurement,263.900 m?

Accepted Answer

A)   2
B)   3
C)   4
D)   5
E)   6F) D) and E)
G) C) and E)

Question 8

The recommended adult dose of Elixophyllin  ,a drug used to treat asthma,is 6.00 mg/kg of body mass.Calculate the dose in milligrams for a 115-lb person.1 lb = 453.59 g.

Accepted Answer

A)   24
B)   1,521
C)   1.5
D)   313
E)   3.1 × 105F) B) and D)
G) A) and B)

Question 9

Define matter.

Accepted Answer

Matter is anything t...

Question 10

Which multiplier does the abbreviation mega represent?

Accepted Answer

A)   1 × 10-1
B)   1 × 10-3
C)   1 × 103
D)   1 × 106
E)   1 × 109F) A) and B)
G) D) and E)

Question 11

A scientific theory

Accepted Answer

A)   is just a theory.
B)   is a strict set of rules and procedures that lead to inarguable fact.
C)   isn't used much in modern chemistry.
D)   is based on continued observation and experiment.
E)   is a framework for proving an argument you know to be true.F) C) and D)
G) A) and C)

Question 12

Identify the boiling point of water.

Accepted Answer

A)   373 Kelvin
B)   32 degrees Fahrenheit
C)   -459 degrees Fahrenheit
D)   None of the aboveE) All of the above
F) C) and D)

Question 13

The factor 0.01 corresponds to which prefix?

Accepted Answer

A)   deka
B)   deci
C)   centi
D)   milliE) C) and D)
F) None of the above

Question 14

Which of the following numbers has the greatest number of significant figures?

Accepted Answer

A)   0.6080
B)   0.504
C)   529000
D)   1.06 × 1024E) B) and D)
F) A) and C)

Question 15

Identify the common substance that has the highest density.

Accepted Answer

A)   glass
B)   ethanol
C)   aluminum
D)   lead
E)   ironF) A) and E)
G) A) and C)

Question 16

A student weighed 30.00 μg of sulfur in the lab.This is the same mass as

Accepted Answer

A)   3.000 × 10-8 g.
B)   3.000 × 10-5 kg.
C)   3.000 × 10-5 mg.
D)   3.000 × 104 ng.E) None of the above
F) A) and C)

Question 17

Describe the difference between an intensive and extensive property using examples.

Accepted Answer

An intensive property does NOT depend on...

Question 18

Which of the following statements is TRUE?

Accepted Answer

A)   A scientific law is fact.
B)   Once a theory is constructed, it is considered fact.
C)   A hypothesis is speculation that is difficult to test.
D)   An observation explains why nature does something.
E)   A scientific law summarizes a series of related observations.F) B) and E)
G) A) and D)

Question 19

If the melting point of molybdenum metal is 2623°C,what is its melting point in Kelvin?

Accepted Answer

A)   1454 K
B)   2350 K
C)   2896 K
D)   4753 KE) All of the above
F) B) and C)

Question 20

Define thermal energy.

Accepted Answer

A)   energy associated with the temperature of an object
B)   energy associated with the motion of an object
C)   energy associated with the force of an object
D)   energy associated with the gravity of an object
E)   energy associated with the position or composition of an objectF) B) and C)
G) A) and B)

Exam 1: Matter, measurement, and Problem Solving

Identify the common substance that has the highest density.

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A fishing boat accidentally spills 3.0 barrels of diesel oil into the ocean.Each barrel contains 42 gallons.If the oil film on the ocean is 2.5 × 102 nm thick,how many square meters will the oil slick cover?

Correct AnswerverifiedShow Answer

A physical change

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Which of the following statements is TRUE?

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Which of the following numbers has the greatest number of significant figures?

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How many significant figures are in the measurement,263.900 m?

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Describe the difference between an intensive and extensive property using examples.

Correct AnswerverifiedAn intensive property does NOT depend on...View AnswerShow Answer

What symbol is used to represent the factor 10-2?

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A scientific theory

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Define matter.

Correct AnswerverifiedMatter is anything t...View AnswerShow Answer

If the temperature is 228°F,what is the temperature in degrees Celsius?

Correct AnswerverifiedShow Answer

A student weighed 30.00 μg of sulfur in the lab.This is the same mass as

Correct AnswerverifiedShow Answer

The recommended adult dose of Elixophyllin ,a drug used to treat asthma,is 6.00 mg/kg of body mass.Calculate the dose in milligrams for a 115-lb person.1 lb = 453.59 g.

Correct AnswerverifiedShow Answer

Define thermal energy.

Correct AnswerverifiedShow Answer

If the melting point of molybdenum metal is 2623°C,what is its melting point in Kelvin?

Correct AnswerverifiedShow Answer

The factor 0.01 corresponds to which prefix?

Correct AnswerverifiedShow Answer

How many significant figures are in the measurement,31.600 m?

Correct AnswerverifiedShow Answer

Which multiplier does the abbreviation mega represent?

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Identify the boiling point of water.

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Osteoporosis is a condition in which the bone density becomes low.Healthy bones in young adults have a bone density of 1.0 g/cm3.Identify the incorrect statement.

Correct AnswerverifiedShow Answer

Correct Answer
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A fishing boat accidentally spills 3.0 barrels of diesel oil into the ocean.Each barrel contains 42 gallons.If the oil film on the ocean is 2.5 × 10² nm thick,how many square meters will the oil slick cover?

Correct Answer
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Correct Answer
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Correct Answer
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An intensive property does NOT depend on...
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What symbol is used to represent the factor 10^-2?

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Matter is anything t...
View Answer

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Osteoporosis is a condition in which the bone density becomes low.Healthy bones in young adults have a bone density of 1.0 g/cm³.Identify the incorrect statement.

Correct Answer
verified