A sample of molten iron occupies a volume of 7.11 × 10 − 3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample?

A) 0.000904 g B) 0.0559 g C) 0.904 g D) 1.105 g E) 55.8846 g A) 0.000904 g B) 0.0559 g C) 0.904 g D) 1.105 g E) 55.8846 g

Solve the problem. 3.72 × 10 8 × 9.26 × 10 − 3 = _____

A) 3.44 × 106 B) 4.02 × 1010 C) 3.45 × 105 D) 3.44 × 10 − 4 E) 4.02 × 10 − 10 A) 3.44 × 106 B) 4.02 × 1010 C) 3.45 × 105 D) 3.44 × 10 − 4 E) 4.02 × 10 − 10

The diameter of the nucleus of an atom is approximately 1 × 10 − 13 m. If 1 nm is equal to 10 Å , what is the diameter of the nucleus in Å ? (1 nm = 1 x 10 − 9 m)

A) 1 × 10 − 21 Å B) 1 × 10 − 6 Å C) 1 × 10 − 5 Å D) 1 × 10 − 4 Å E) 1 × 10 − 3 Å A) 1 × 10 − 21 Å B) 1 × 10 − 6 Å C) 1 × 10 − 5 Å D) 1 × 10 − 4 Å E) 1 × 10 − 3 Å

Determine the density of a 100.0 g sample of mercury having a volume of 7.36 cm 3 . Carry out the calculation to the correct number of significant digits.

A) 13.58 g/cm3 B) 13.66 g/cm3 C) 183 g/cm3 D) 0.0732 g/cm3 E) 0.073 g/cm3 A) 13.58 g/cm3 B) 13.66 g/cm3 C) 183 g/cm3 D) 0.0732 g/cm3 E) 0.073 g/cm3

Exam 2: The Chemists Toolbox

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many monkeys can a zoo obtain in exchange for 15 flamingos?

(Multiple Choice)

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Question 21

Determine the volume occupied by 1.5 g of ethyl alcohol. The density of ethyl alcohol is 0.789 g/mL.

(Multiple Choice)

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Question 22

Because of the high heat and humidity in the summer in Death Valley, California, a hiker requires about one quart of water for every two miles traveled on foot. If the density of water is 0.999 g/mL at 45 ^o C, how many kilograms of water are required for a person to walk 30 kilometers in Death Valley? (1 L = 1.0567 qt; 1 km = 0.62317 miles)

(Multiple Choice)

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Question 23

Determine the mass in grams of a gold sample that occupies a volume of 16.39 mL? Gold has a density of 19.3 g/mL.

(Multiple Choice)

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Question 24

Solve the problem. (12.67 × 4.23) ÷ 23.42 = _____

(Multiple Choice)

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Question 25

Solve the following equation for z: 4z ÷ 2z + 3 = 30

(Multiple Choice)

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Question 26

Which of these represents the SI prefix for mega (M)?

(Multiple Choice)

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Question 27

A sample of molten iron occupies a volume of 7.11 × 10^{− 3} L. If the density of iron is 7.86 g/cm³, what is the mass of iron in grams in the sample?

(Multiple Choice)

4.8/5

(38)

Question 28

The _____ of a substance is a measure of how much of its mass is in a given amount of space.

(Multiple Choice)

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Question 29

What is the correct SI unit for time?

(Multiple Choice)

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Question 30

Most races are now measured in kilometers. What is the distance in miles a runner must complete in a 10-kilometer run? (1 km = 0.62137 mile)

(Multiple Choice)

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(34)

Question 31

A football field is 100.0 yd long. What is its length in meters? (1 yd = 0.9144 m)

(Multiple Choice)

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Question 32

Solve the problem. 3.72 × 10 ⁸ × 9.26 × 10 − ³ = _____

(Multiple Choice)

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Question 33

The diameter of the nucleus of an atom is approximately 1 × 10 − ¹³ m. If 1 nm is equal to 10 Å , what is the diameter of the nucleus in Å ? (1 nm = 1 x 10 − ⁹ m)

(Multiple Choice)

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(26)

Question 34

Which of the following is not true?

(Multiple Choice)

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Question 35

Determine the density of a 100.0 g sample of mercury having a volume of 7.36 cm ³ . Carry out the calculation to the correct number of significant digits.

(Multiple Choice)

4.8/5

(35)

Question 36

Which of these series correctly orders the values given from smallest to largest? I. 0.001 Mg II. 2,000,000 ng III. 1 Gg IV. 100,000 cg

(Multiple Choice)

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(36)

Question 37

The long jump record is 8.90 m. What is the length in yards? (1 yd = 0.9144 m)

(Multiple Choice)

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Question 38

What is the mass in kilograms of a 25.00-pound dumbbell? (454 g = 1 pound)

(Multiple Choice)

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(40)

Question 39

Which of these series provides the correct ascending order of values given? I. 100 cm II. 1 km III. 10 m IV. 100,000 mm

(Multiple Choice)

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Question 40

Showing 21 - 40 of 78

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many monkeys can a zoo obtain in exchange for 15 flamingos?

Determine the volume occupied by 1.5 g of ethyl alcohol. The density of ethyl alcohol is 0.789 g/mL.

Determine the mass in grams of a gold sample that occupies a volume of 16.39 mL? Gold has a density of 19.3 g/mL.

Solve the problem. (12.67 × 4.23) ÷ 23.42 = _____

Solve the following equation for z: 4z ÷ 2z + 3 = 30

Which of these represents the SI prefix for mega (M)?

A sample of molten iron occupies a volume of 7.11 × 10^{− 3} L. If the density of iron is 7.86 g/cm³, what is the mass of iron in grams in the sample?

The _____ of a substance is a measure of how much of its mass is in a given amount of space.

What is the correct SI unit for time?

Most races are now measured in kilometers. What is the distance in miles a runner must complete in a 10-kilometer run? (1 km = 0.62137 mile)

A football field is 100.0 yd long. What is its length in meters? (1 yd = 0.9144 m)

Solve the problem. 3.72 × 10 ⁸ × 9.26 × 10 − ³ = _____

The diameter of the nucleus of an atom is approximately 1 × 10 − ¹³ m. If 1 nm is equal to 10 Å , what is the diameter of the nucleus in Å ? (1 nm = 1 x 10 − ⁹ m)

Which of the following is not true?

Determine the density of a 100.0 g sample of mercury having a volume of 7.36 cm ³ . Carry out the calculation to the correct number of significant digits.

Which of these series correctly orders the values given from smallest to largest? I. 0.001 Mg II. 2,000,000 ng III. 1 Gg IV. 100,000 cg

The long jump record is 8.90 m. What is the length in yards? (1 yd = 0.9144 m)

What is the mass in kilograms of a 25.00-pound dumbbell? (454 g = 1 pound)

Which of these series provides the correct ascending order of values given? I. 100 cm II. 1 km III. 10 m IV. 100,000 mm

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Molecules, Compounds, and Chemical Reactions

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Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

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Drugs and Medicine: Healing, Helping, and Hurting

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Exam 2: The Chemists Toolbox

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many monkeys can a zoo obtain in exchange for 15 flamingos?

Determine the volume occupied by 1.5 g of ethyl alcohol. The density of ethyl alcohol is 0.789 g/mL.

Determine the mass in grams of a gold sample that occupies a volume of 16.39 mL? Gold has a density of 19.3 g/mL.

Solve the problem. ​ (12.67 × 4.23) ÷ 23.42 = _____

Solve the following equation for z: 4z ÷ 2z + 3 = 30

Which of these represents the SI prefix for mega (M)?

A sample of molten iron occupies a volume of 7.11 × 10 − 3 L. If the density of iron is 7.86 g/cm3, what is the mass of iron in grams in the sample?

The _____ of a substance is a measure of how much of its mass is in a given amount of space.

What is the correct SI unit for time?

Most races are now measured in kilometers. What is the distance in miles a runner must complete in a 10-kilometer run? (1 km = 0.62137 mile)

A football field is 100.0 yd long. What is its length in meters? (1 yd = 0.9144 m)

Solve the problem. ​ 3.72 × 10 8 × 9.26 × 10 − 3 = _____

The diameter of the nucleus of an atom is approximately 1 × 10 − 13 m. If 1 nm is equal to 10 Å , what is the diameter of the nucleus in Å ? (1 nm = 1 x 10 − 9 m)

Which of the following is not true?

Determine the density of a 100.0 g sample of mercury having a volume of 7.36 cm 3 . Carry out the calculation to the correct number of significant digits.

Which of these series correctly orders the values given from smallest to largest? I. 0.001 Mg II. 2,000,000 ng III. 1 Gg IV. 100,000 cg

The long jump record is 8.90 m. What is the length in yards? (1 yd = 0.9144 m)

What is the mass in kilograms of a 25.00-pound dumbbell? (454 g = 1 pound)

Which of these series provides the correct ascending order of values given? I. 100 cm II. 1 km III. 10 m IV. 100,000 mm

Molecular Reasons

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

Oxidation and Reduction

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology Online Only

Filters

Solve the problem. (12.67 × 4.23) ÷ 23.42 = _____

A sample of molten iron occupies a volume of 7.11 × 10^{− 3} L. If the density of iron is 7.86 g/cm³, what is the mass of iron in grams in the sample?

Solve the problem. 3.72 × 10 ⁸ × 9.26 × 10 − ³ = _____

The diameter of the nucleus of an atom is approximately 1 × 10 − ¹³ m. If 1 nm is equal to 10 Å , what is the diameter of the nucleus in Å ? (1 nm = 1 x 10 − ⁹ m)

Determine the density of a 100.0 g sample of mercury having a volume of 7.36 cm ³ . Carry out the calculation to the correct number of significant digits.