Question 1

A large pizza has a diameter of 15 inches.Express this diameter in centimeters.(1 in = 2.54 cm)

Accepted Answer

A) 38 cm 
B) 24 cm 
C) 18 cm 
D) 9.3 cm 
E) 5.9 cm 
A) 38 cm 
B) 24 cm 
C) 18 cm 
D) 9.3 cm 
E) 5.9 cm

Question 2

Write the value 15,360,000,000 in scientific notation.

Accepted Answer

A) 1.536 × 10−11 
B) 1.536 × 10+10 
C) 1.536 × 10+11 
D) 1.536 × 10−6 
A) 1.536 × 10−11 
B) 1.536 × 10+10 
C) 1.536 × 10+11 
D) 1.536 × 10−6

Question 3

Convert 1,556.9 mm into units of km.

Accepted Answer

A) 1.5569 × 10−6 km 
B) 1.5569 × 101 km 
C) 1.5569 × 103 km 
D) 1.5569 × 10−3 km 
E) 1.5569 × 109 km 
A) 1.5569 × 10−6 km 
B) 1.5569 × 101 km 
C) 1.5569 × 103 km 
D) 1.5569 × 10−3 km 
E) 1.5569 × 109 km

Question 4

The speed needed to escape the pull of Earth's gravity is 11.3 km/s.What is this speed in mi/h? (1 mile = 1609 m)

Accepted Answer

A) 65,500 mi/h 
B) 25,300 mi/h 
C) 18,200 mi/h 
D) 1,090 mi/h 
E) 5.2 × 10−3 mi/h 
A) 65,500 mi/h 
B) 25,300 mi/h 
C) 18,200 mi/h 
D) 1,090 mi/h 
E) 5.2 × 10−3 mi/h

Question 5

The density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm3.What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

Accepted Answer

A) 849 lb/in3 
B) 491 lb/in3 
C) 376 lb/in3 
D) 0.491 lb/in3 
E) 1.83 × 10−3 lb/in3 
A) 849 lb/in3 
B) 491 lb/in3 
C) 376 lb/in3 
D) 0.491 lb/in3 
E) 1.83 × 10−3 lb/in3

Question 6

The SI prefix nano- (n) means

Accepted Answer

A) 10−9 
B) 10−6 
C) 10−3 
D) 10+6 
E) 10+9 
A) 10−9 
B) 10−6 
C) 10−3 
D) 10+6 
E) 10+9

Question 7

Which is correct if 15,390,000 is rounded to two significant figures?

Accepted Answer

A) 15 
B) 1.5 × 10−7 
C) 1.5 × 108 
D) 15,400,000 
E) 15,000,000 
A) 15 
B) 1.5 × 10−7 
C) 1.5 × 108 
D) 15,400,000 
E) 15,000,000

Question 8

The SI prefix mega- (M) means

Accepted Answer

A) 10−6 
B) 10−3 
C) 103 
D) 106 
E) 109 
A) 10−6 
B) 10−3 
C) 103 
D) 106 
E) 109

Question 9

Select the largest unit.

Accepted Answer

A) mg 
B) μg 
C) kg 
D) dg 
E) Mg 
A) mg 
B) μg 
C) kg 
D) dg 
E) Mg

Question 10

A train is accelerating at a rate of 11.8 m/s2.What is this rate in units of nm/ms2?

Accepted Answer

A) 1.18 × 10−11 nm/ms2 
B) 1.18 × 10−14 nm/ms2 
C) 1.18 × 107 nm/ms2 
D) 1.18 × 109 nm/ms2 
E) 1.18 × 104 nm/ms2 
A) 1.18 × 10−11 nm/ms2 
B) 1.18 × 10−14 nm/ms2 
C) 1.18 × 107 nm/ms2 
D) 1.18 × 109 nm/ms2 
E) 1.18 × 104 nm/ms2

Question 11

Write the value 0.000000000143 in scientific notation.

Accepted Answer

A) 1.43 × 10−10 
B) 1.43 × 10−9 
C) 1.43 × 10+10 
D) 1.43 × 10+9 
E) 1.430 × 10−9 
A) 1.43 × 10−10 
B) 1.43 × 10−9 
C) 1.43 × 10+10 
D) 1.43 × 10+9 
E) 1.430 × 10−9

Question 12

Isopropyl alcohol, commonly known as rubbing alcohol, boils at 82.4°C.What is the boiling point in kelvins?

Accepted Answer

A) 387.6 K 
B) 355.6 K 
C) 323.6 K 
D) 190.8 K 
E) −190.8 K 
A) 387.6 K 
B) 355.6 K 
C) 323.6 K 
D) 190.8 K 
E) −190.8 K

Question 13

Select the smallest unit.

Accepted Answer

A) mm 
B) μm 
C) nm 
D) km 
E) dm 
A) mm 
B) μm 
C) nm 
D) km 
E) dm

Question 14

Write the value 4,710,000,000,000 in scientific notation.

Accepted Answer

A) 4.710 × 10−11 
B) 4.71 × 10+11 
C) 4.71 × 10+12 
D) 4.710 × 10+9 
E) 4.71 × 10−12 
A) 4.710 × 10−11 
B) 4.71 × 10+11 
C) 4.71 × 10+12 
D) 4.710 × 10+9 
E) 4.71 × 10−12

Question 15

If the density of corn syrup is 1.380 g/mL and a sample of corn syrup has a mass of 32 grams, what is the volume of corn syrup, in liters?

Accepted Answer

A) 43 L 
B) 23 L 
C) 0.043 L 
D) 0.023 L 
E) 2.3 L 
A) 43 L 
B) 23 L 
C) 0.043 L 
D) 0.023 L 
E) 2.3 L

Question 16

The city of Los Angeles is now approximately 2400 miles south of Anchorage, Alaska.It is moving slowly northward as the San Andreas fault slides along.If Los Angeles is to arrive near Anchorage in 76 million years, at what average rate will it have to move in mm per month? (1 mi = 1609 m)

Accepted Answer

A) 2.0 × 10−10 mm/mo. 
B) 6.6 × 10−6 mm/mo. 
C) 4.2 mm/mo. 
D) 9.5 mm/mo. 
E) 51 mm/mo. 
A) 2.0 × 10−10 mm/mo. 
B) 6.6 × 10−6 mm/mo. 
C) 4.2 mm/mo. 
D) 9.5 mm/mo. 
E) 51 mm/mo.

Question 17

Iron has a density of 7.87 g/cm3.What mass of iron would be required to cover a football playing surface of 120 yds × 60.yds to a depth of 1.0 mm? (1 inch = 2.54 cm)

Accepted Answer

A) 76 kg 
B) 47 Mg 
C) 7.6 × 105 g 
D) 4.7 × 108 g 
E) 1.9 × 107 g 
A) 76 kg 
B) 47 Mg 
C) 7.6 × 105 g 
D) 4.7 × 108 g 
E) 1.9 × 107 g

Question 18

The number 1.050 × 109 has how many significant figures?

Accepted Answer

A) 2 
B) 3 
C) 4 
D) 9 
E) 13 
A) 2 
B) 3 
C) 4 
D) 9 
E) 13

Question 19

A geology student found an irregularly shaped rock, with a mass of 28.63 grams, and placed it into a graduated cylinder containing 13.31 mL of water.If the water level increased to 19.73 mL after the rock was placed in the cylinder, what is the density of the rock, in g/mL?

Accepted Answer

A) 4.46 g/mL 
B) 4460 g/mL 
C) 2.20 g/mL 
D) 0.455 g/mL 
E) 44.6 g/mL 
A) 4.46 g/mL 
B) 4460 g/mL 
C) 2.20 g/mL 
D) 0.455 g/mL 
E) 44.6 g/mL

Question 20

What unit would be most appropriate when reporting the volume 1.94 × 10−3 g?

Accepted Answer

A) mg 
B) μg 
C) kg 
D) dg 
E) Mg 
A) mg 
B) μg 
C) kg 
D) dg 
E) Mg

A large pizza has a diameter of 15 inches.Express this diameter in centimeters.(1 in = 2.54 cm)

Write the value 15,360,000,000 in scientific notation.

Convert 1,556.9 mm into units of km.

The speed needed to escape the pull of Earth's gravity is 11.3 km/s.What is this speed in mi/h? (1 mile = 1609 m)

The density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm³.What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

The SI prefix nano- (n) means

Which is correct if 15,390,000 is rounded to two significant figures?

The SI prefix mega- (M) means

Select the largest unit.

A train is accelerating at a rate of 11.8 m/s².What is this rate in units of nm/ms²?

Write the value 0.000000000143 in scientific notation.

Isopropyl alcohol, commonly known as rubbing alcohol, boils at 82.4°C.What is the boiling point in kelvins?

Select the smallest unit.

Write the value 4,710,000,000,000 in scientific notation.

If the density of corn syrup is 1.380 g/mL and a sample of corn syrup has a mass of 32 grams, what is the volume of corn syrup, in liters?

The city of Los Angeles is now approximately 2400 miles south of Anchorage, Alaska.It is moving slowly northward as the San Andreas fault slides along.If Los Angeles is to arrive near Anchorage in 76 million years, at what average rate will it have to move in mm per month? (1 mi = 1609 m)

Iron has a density of 7.87 g/cm³.What mass of iron would be required to cover a football playing surface of 120 yds × 60.yds to a depth of 1.0 mm? (1 inch = 2.54 cm)

The number 1.050 × 10⁹ has how many significant figures?

A geology student found an irregularly shaped rock, with a mass of 28.63 grams, and placed it into a graduated cylinder containing 13.31 mL of water.If the water level increased to 19.73 mL after the rock was placed in the cylinder, what is the density of the rock, in g/mL?

What unit would be most appropriate when reporting the volume 1.94 × 10⁻³ g?

Atoms and Elements

Electrons and the Periodic Table

Compounds and Chemical Bonds

The Mole and Chemical Formulas

Molecular Shape

Solids, Liquids, and Phase Changes

Gases

Physical Properties of Solutions

Chemical Reactions and Chemical Equations

Using Balanced Chemical Equations

Acids and Bases

Equilibrium

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Nuclear Chemistry

Electrochemistry

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Exam 4: How Chemists Use Numbers

A large pizza has a diameter of 15 inches.Express this diameter in centimeters.(1 in = 2.54 cm)

Write the value 15,360,000,000 in scientific notation.

Convert 1,556.9 mm into units of km.

The speed needed to escape the pull of Earth's gravity is 11.3 km/s.What is this speed in mi/h? (1 mile = 1609 m)

The density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm3.What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

The SI prefix nano- (n) means

Which is correct if 15,390,000 is rounded to two significant figures?

The SI prefix mega- (M) means

Select the largest unit.

A train is accelerating at a rate of 11.8 m/s2.What is this rate in units of nm/ms2?

Write the value 0.000000000143 in scientific notation.

Isopropyl alcohol, commonly known as rubbing alcohol, boils at 82.4°C.What is the boiling point in kelvins?

Select the smallest unit.

Write the value 4,710,000,000,000 in scientific notation.

If the density of corn syrup is 1.380 g/mL and a sample of corn syrup has a mass of 32 grams, what is the volume of corn syrup, in liters?

The city of Los Angeles is now approximately 2400 miles south of Anchorage, Alaska.It is moving slowly northward as the San Andreas fault slides along.If Los Angeles is to arrive near Anchorage in 76 million years, at what average rate will it have to move in mm per month? (1 mi = 1609 m)

Iron has a density of 7.87 g/cm3.What mass of iron would be required to cover a football playing surface of 120 yds × 60.yds to a depth of 1.0 mm? (1 inch = 2.54 cm)

The number 1.050 × 109 has how many significant figures?

A geology student found an irregularly shaped rock, with a mass of 28.63 grams, and placed it into a graduated cylinder containing 13.31 mL of water.If the water level increased to 19.73 mL after the rock was placed in the cylinder, what is the density of the rock, in g/mL?

What unit would be most appropriate when reporting the volume 1.94 × 10−3 g?

Atoms and Elements

Electrons and the Periodic Table

Compounds and Chemical Bonds

The Mole and Chemical Formulas

Molecular Shape

Solids, Liquids, and Phase Changes

Gases

Physical Properties of Solutions

Chemical Reactions and Chemical Equations

Using Balanced Chemical Equations

Acids and Bases

Equilibrium

Organic Chemistry

Biochemistry

Nuclear Chemistry

Electrochemistry

Filters

The density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm³.What is that density in pounds per cubic inch? (1 in = 2.54 cm; 1 lb = 454 g)

A train is accelerating at a rate of 11.8 m/s².What is this rate in units of nm/ms²?

Iron has a density of 7.87 g/cm³.What mass of iron would be required to cover a football playing surface of 120 yds × 60.yds to a depth of 1.0 mm? (1 inch = 2.54 cm)

The number 1.050 × 10⁹ has how many significant figures?

What unit would be most appropriate when reporting the volume 1.94 × 10⁻³ g?