Question 1

How many milliliters is 0.005 L?

Accepted Answer

A) 0.5 mL 
B) 5 mL 
C) 0.50 mL 
D) 0.000005 mL 
E) 200 mL 
A) 0.5 mL 
B) 5 mL 
C) 0.50 mL 
D) 0.000005 mL 
E) 200 mL

Question 2

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; 1 lb = 453.6 g)

Accepted Answer

A) 6.4 * 103 lb 
B) 6.4 * 104 lb 
C) 1.0 * 105 lb 
D) 4.7 * 107 lb 
E) 4.7 * 108 lb 
A) 6.4 * 103 lb 
B) 6.4 * 104 lb 
C) 1.0 * 105 lb 
D) 4.7 * 107 lb 
E) 4.7 * 108 lb

Question 3

Radio waves travel at the speed of light, which is 3.00 * 108 m/s. How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 *108 km from Earth?

Accepted Answer

A) 4.4 * 10-2 min 
B) 1.6 * 105 min 
C) 4.0 * 1015 min 
D) 44 min 
E) 2.6 min 
A) 4.4 * 10-2 min 
B) 1.6 * 105 min 
C) 4.0 * 1015 min 
D) 44 min 
E) 2.6 min

Question 4

The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20$\circ$C, and that 1 carat = 0.200 g.

Accepted Answer

A) 2.5 cm3 
B) 0.40 cm3 
C) 0.016 cm3 
D) 63 cm3 
E) 150 cm3 
A) 2.5 cm3 
B) 0.40 cm3 
C) 0.016 cm3 
D) 63 cm3 
E) 150 cm3

Question 5

Identify the following as a physical or chemical change: Water is broken down into hydrogen and oxygen.

Accepted Answer

The answer of Identify the following as a physical or...

Question 6

The average distance from Earth to the sun is 9.3 * 107 miles. How many kilometers is this?

Accepted Answer

A) 1.5 * 108 km 
B) 1.5 * 105 km 
C) 5.6 * 107 km 
D) 1.7 * 10-8 km 
E) 1.5 * 1011 km 
A) 1.5 * 108 km 
B) 1.5 * 105 km 
C) 5.6 * 107 km 
D) 1.7 * 10-8 km 
E) 1.5 * 1011 km

Question 7

An automobile engine has a piston displacement of 1,600 cm3. Express this volume in liters.

Accepted Answer

Question 8

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 9

Define pure substance.

Accepted Answer

Something

Question 10

The radius of the Earth is approximately 6370 km. If one could dig down straight towards the center of the Earth, one would find that the innermost 3480 km (the core)has an average density of about 11.g/cm3. Above that are the mantle and crust. If the average density of the Earth is 5.5 g/cm3, what is the average density of the Earth's mantle and crust? (Recall that the volume of a sphere is given by V = (4/3)$\pi$r3.)

Accepted Answer

A) 57.g/cm3 
B) 4.5 g/cm3 
C) 8.7 g/cm3 
D) 5.3 g/cm3 
E) not enough data is provided 
A) 57.g/cm3 
B) 4.5 g/cm3 
C) 8.7 g/cm3 
D) 5.3 g/cm3 
E) not enough data is provided

Question 11

The density of lead is 11.4 g/cm3 at 25$\circ$C. Calculate the volume occupied by 25.0 g of lead.

Accepted Answer

A) 2.19 cm3 
B) 0.456 cm3 
C) 285 cm3 
D) 1.24 cm3 
E) 6.05 cm3 
A) 2.19 cm3 
B) 0.456 cm3 
C) 285 cm3 
D) 1.24 cm3 
E) 6.05 cm3

Question 12

You just measured a block of wood and obtained the following information:
mass = 55.120 g
length = 8.5 cm
height = 4.3 cm
width = 3.3 cm
Determine the volume and density of the wood block.

Accepted Answer

Volume of the wood b

Question 13

How many significant figures does the result of the following sum contain? 8.520 + 2.7

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 14

Classify the following as a pure substance or a mixture: Seven-Up®.

Accepted Answer

The answer of Classify the following as a pure substance...

Question 15

Name two types of mixtures.

Accepted Answer

Homogeneou

Question 16

How many cubic inches are in 1.00 liter?

Accepted Answer

A) 61.0 in3 
B) 155 in3 
C) 394 in3 
D) 1.64 * 104 in3 
E) none of them 
A) 61.0 in3 
B) 155 in3 
C) 394 in3 
D) 1.64 * 104 in3 
E) none of them

Question 17

How many cubic centimeters are there in exactly one cubic meter?

Accepted Answer

A) 1 * 10-6 cm3 
B) 1 * 10-3 cm3 
C) 1 * 10-2 cm3 
D) 1 * 104 cm3 
E) 1 * 106 cm3 
A) 1 * 10-6 cm3 
B) 1 * 10-3 cm3 
C) 1 * 10-2 cm3 
D) 1 * 104 cm3 
E) 1 * 106 cm3

Question 18

Give an example of an extensive property.

Accepted Answer

(Answers w

Question 19

A tentative explanation for a set of observations that can be tested by further experimentation is referred to as

Accepted Answer

A) a hypothesis. 
B) a law. 
C) a theory. 
D) none of the above. 
A) a hypothesis. 
B) a law. 
C) a theory. 
D) none of the above.

Question 20

Which one of the following represents a chemical change?

Accepted Answer

A) boiling water to form steam 
B) burning a piece of coal 
C) heating lead until it melts 
D) mixing iron filings and sand at room temperature 
E) breaking glass 
A) boiling water to form steam 
B) burning a piece of coal 
C) heating lead until it melts 
D) mixing iron filings and sand at room temperature 
E) breaking glass

Exam 1: Chemistry: The Study of Change

How many milliliters is 0.005 L?

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; 1 lb = 453.6 g)

Radio waves travel at the speed of light, which is 3.00 * 108 m/s. How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 *108 km from Earth?

The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20 ∘\circ∘ C, and that 1 carat = 0.200 g.

Identify the following as a physical or chemical change: Water is broken down into hydrogen and oxygen.

The average distance from Earth to the sun is 9.3 * 107 miles. How many kilometers is this?

An automobile engine has a piston displacement of 1,600 cm3. Express this volume in liters.

The number 1.050 *109 has how many significant figures?

Define pure substance.

The density of lead is 11.4 g/cm3 at 25 ∘\circ∘ C. Calculate the volume occupied by 25.0 g of lead.

You just measured a block of wood and obtained the following information: mass = 55.120 g length = 8.5 cm height = 4.3 cm width = 3.3 cm Determine the volume and density of the wood block.

How many significant figures does the result of the following sum contain? 8.520 + 2.7

Classify the following as a pure substance or a mixture: Seven-Up®.

Name two types of mixtures.

How many cubic inches are in 1.00 liter?

How many cubic centimeters are there in exactly one cubic meter?

Give an example of an extensive property.

A tentative explanation for a set of observations that can be tested by further experimentation is referred to as

Which one of the following represents a chemical change?

Atoms, Molecules, and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solution

Gases

Thermo-Chemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Chemistry in the Atmosphere

Entropy, Free Energy, and Equilibrium

Electrochemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metal Chemistry and Coordination Compounds

Nuclear Chemistry

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

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; 1 lb = 453.6 g)

Radio waves travel at the speed of light, which is 3.00 * 10⁸ m/s. How many minutes does it take for a radio message to reach Earth from Saturn if Saturn is 7.9 *10⁸ km from Earth?

The Hope diamond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm³ at 20^$\circ$C, and that 1 carat = 0.200 g.

The average distance from Earth to the sun is 9.3 * 10⁷ miles. How many kilometers is this?

An automobile engine has a piston displacement of 1,600 cm³. Express this volume in liters.

The number 1.050 *10⁹ has how many significant figures?

The density of lead is 11.4 g/cm³ at 25^$\circ$C. Calculate the volume occupied by 25.0 g of lead.