Question 1

Which one of the following is an example of a physical property?

Accepted Answer

A) dynamite explodes 
B) meat rots if it is not refrigerated 
C) gasoline burns 
D) ice floats on top of liquid water 
E) a silver platter tarnishes 
A) dynamite explodes 
B) meat rots if it is not refrigerated 
C) gasoline burns 
D) ice floats on top of liquid water 
E) a silver platter tarnishes

Question 2

Classify the following as a mixture, a compound, or an element: Sugar to put in a cup of coffee.

Accepted Answer

The answer of Classify the following as a mixture, a...

Question 3

The conversion of water into steam is an example of a chemical change.

Accepted Answer

A) True 
 B)False

Question 4

Complete the following sentence. A theory is

Accepted Answer

A) a tentative explanation for a set of observations that can be tested by further experimentation. 
B) a statement describing a relationship between phenomena that is always the same under the same conditions. 
C) a unifying principle that explains a body of facts and relations. 
D) a model used to visualize the invisible. 
A) a tentative explanation for a set of observations that can be tested by further experimentation. 
B) a statement describing a relationship between phenomena that is always the same under the same conditions. 
C) a unifying principle that explains a body of facts and relations. 
D) a model used to visualize the invisible.

Question 5

The recommended daily allowance (RDA)of calcium is 1.2 g. Calcium carbonate contains 12.0% calcium by mass. How many grams of calcium carbonate are needed to provide the RDA of calcium?

Accepted Answer

A) 0.10 g 
B) 0.14 g 
C) 1.2 g 
D) 10 g 
E) 14 g 
A) 0.10 g 
B) 0.14 g 
C) 1.2 g 
D) 10 g 
E) 14 g

Question 6

The SI prefixes milli and mega represent, respectively:

Accepted Answer

A) 106 and 10- 6. 
B) 10- 3 and 106. 
C) 103 and 10- 6. 
D) 10- 3 and 109. 
E) 10- 6 and 10- 3. 
A) 106 and 10- 6. 
B) 10- 3 and 106. 
C) 103 and 10- 6. 
D) 10- 3 and 109. 
E) 10- 6 and 10- 3.

Question 7

What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of gas is $2.79 per gallon?

Accepted Answer

The answer of What will be the cost of gasoline...

Question 8

Americans combined drive about 4.0*109 miles per day and their vehicles get an average of 20 miles per gallon of fuel used. For each 1 kg of gasoline that is burned, about 3.0 kg of carbon dioxide are produced. How many kilograms of CO2 are emitted into the atmosphere each day by cars in the U.S.? One gallon of gas weighs about 3.5 kg.

Accepted Answer

A) 2.1 * 109 kg 
B) 8.4 * 1011 kg 
C) 1.7 * 108 kg 
D) 93 kg 
E) none of these 
A) 2.1 * 109 kg 
B) 8.4 * 1011 kg 
C) 1.7 * 108 kg 
D) 93 kg 
E) none of these

Question 9

A unifying principle that explains a body of facts and relations 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 10

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 11

Classify the following as a pure substance or a mixture: Ice cream.

Accepted Answer

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

Question 12

A particular flask has a mass of 17.4916 g when empty. When filled with ordinary water at 20.0°C (density = 0.9982 g/mL), the mass of the flask is now 43.9616 g. The density of so-called "heavy water" at 20.0°C is 1.1053 g/mL. What will the mass of the flask be when filled with heavy water at 20.0°C?

Accepted Answer

A) 29.2573 g 
B) 46.8016 g 
C) 46.7489 g 
D) 29.3100 g 
E) 43.9140 g 
A) 29.2573 g 
B) 46.8016 g 
C) 46.7489 g 
D) 29.3100 g 
E) 43.9140 g

Question 13

How many cubic centimeters of an ore containing only 0.22% gold (by mass)must be processed to obtain $100 worth of gold? The density of the ore is 8.0 g/cm3 and the price of gold is $818 per troy ounce. (14.6 troy oz = 1.0 ordinary pound, called an avoirdupois pound; 1 lb = 454 g)

Accepted Answer

A) 0.48 cm3 
B) 220 cm3 
C) 1.4 * 103 cm3 
D) 1.7 * 103 cm3 
E) 1.8* 104 cm3 
A) 0.48 cm3 
B) 220 cm3 
C) 1.4 * 103 cm3 
D) 1.7 * 103 cm3 
E) 1.8* 104 cm3

Question 14

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 outermost 2890 km (the crust and the mantle)has an average density of about 4.5 g/cm3. Farther down is the core. If the average density of the Earth is 5.5 g/cm3, what is the average density of the Earth's core? (Recall that the volume of a sphere is given by V = (4/3)$\pi$r3.)

Accepted Answer

A) 11. g/cm3 
B) 57. g/cm3 
C) 6.2 g/cm3 
D) 1.9 g/cm3 
E) not enough data is provided 
A) 11. g/cm3 
B) 57. g/cm3 
C) 6.2 g/cm3 
D) 1.9 g/cm3 
E) not enough data is provided

Question 15

Classify the following as a physical or chemical change: Antifreeze boils out of a radiator.

Accepted Answer

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

Question 16

The highest temperature ever recorded in Phoenix, Arizona, was 122$\circ$F. Express this temperature in $\circ$C.

Accepted Answer

A) 50.0$\circ$C 
B) 64.4$\circ$C 
C) 67.8$\circ$C 
D) 162.0$\circ$C 
E) 219.6$\circ$C 
A) 50.0$\circ$C 
B) 64.4$\circ$C 
C) 67.8$\circ$C 
D) 162.0$\circ$C 
E) 219.6$\circ$C

Question 17

Classify the following as an element, a compound, or a mixture: Oxygen gas.

Accepted Answer

The answer of Classify the following as an element, a...

Question 18

If the price of gasoline is $2.99 per U.S. gallon, what is the cost per liter? (1 L = 1.06 qt)

Accepted Answer

A) $0.30/L 
B) $0.79/L 
C) $1.27/L 
D) $2.99/L 
E) $12.66/L 
A) $0.30/L 
B) $0.79/L 
C) $1.27/L 
D) $2.99/L 
E) $12.66/L

Question 19

The volume of a sphere is given by V = (4/3)$\pi$r3 where r is the radius. What is the mass of a magnesium sphere with a radius of 0.80 cm? (The density of magnesium is 1.74 g/cm3.)

Accepted Answer

Question 20

Classify the following as either a physical or a chemical property: Ice melts at 0oC.

Accepted Answer

Which one of the following is an example of a physical property?

Classify the following as a mixture, a compound, or an element: Sugar to put in a cup of coffee.

The conversion of water into steam is an example of a chemical change.

Complete the following sentence. A theory is

The recommended daily allowance (RDA)of calcium is 1.2 g. Calcium carbonate contains 12.0% calcium by mass. How many grams of calcium carbonate are needed to provide the RDA of calcium?

The SI prefixes milli and mega represent, respectively:

What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of gas is $2.79 per gallon?

A unifying principle that explains a body of facts and relations is referred to as

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

Classify the following as a pure substance or a mixture: Ice cream.

How many cubic centimeters of an ore containing only 0.22% gold (by mass)must be processed to obtain $100 worth of gold? The density of the ore is 8.0 g/cm³ and the price of gold is $818 per troy ounce. (14.6 troy oz = 1.0 ordinary pound, called an avoirdupois pound; 1 lb = 454 g)

Classify the following as a physical or chemical change: Antifreeze boils out of a radiator.

The highest temperature ever recorded in Phoenix, Arizona, was 122^$\circ$F. Express this temperature in ^$\circ$C.

Classify the following as an element, a compound, or a mixture: Oxygen gas.

If the price of gasoline is $2.99 per U.S. gallon, what is the cost per liter? (1 L = 1.06 qt)

The volume of a sphere is given by V = (4/3) $\pi$ r³ where r is the radius. What is the mass of a magnesium sphere with a radius of 0.80 cm? (The density of magnesium is 1.74 g/cm³.)

Classify the following as either a physical or a chemical property: Ice melts at 0^oC.

Atoms, Molecules, and Ions

Stoichiometry

Reactions in Aqueous Solution

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

The Periodic Table

Chemical Bonding I: the Covalent Bond

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

The Chemistry of Coordination Compounds

Nuclear Chemistry

Organic Polymerssynthetic and Natural

Filters

Exam 1: Introduction

Which one of the following is an example of a physical property?

Classify the following as a mixture, a compound, or an element: Sugar to put in a cup of coffee.

The conversion of water into steam is an example of a chemical change.

Complete the following sentence. A theory is

The recommended daily allowance (RDA)of calcium is 1.2 g. Calcium carbonate contains 12.0% calcium by mass. How many grams of calcium carbonate are needed to provide the RDA of calcium?

The SI prefixes milli and mega represent, respectively:

What will be the cost of gasoline for a 4,700-mile automobile trip if the car gets 41 miles per gallon, and the average price of gas is $2.79 per gallon?

A unifying principle that explains a body of facts and relations is referred to as

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

Classify the following as a pure substance or a mixture: Ice cream.

How many cubic centimeters of an ore containing only 0.22% gold (by mass)must be processed to obtain $100 worth of gold? The density of the ore is 8.0 g/cm3 and the price of gold is $818 per troy ounce. (14.6 troy oz = 1.0 ordinary pound, called an avoirdupois pound; 1 lb = 454 g)

Classify the following as a physical or chemical change: Antifreeze boils out of a radiator.

The highest temperature ever recorded in Phoenix, Arizona, was 122 ∘\circ∘ F. Express this temperature in ∘\circ∘ C.

Classify the following as an element, a compound, or a mixture: Oxygen gas.

If the price of gasoline is $2.99 per U.S. gallon, what is the cost per liter? (1 L = 1.06 qt)

The volume of a sphere is given by V = (4/3) π\piπ r3 where r is the radius. What is the mass of a magnesium sphere with a radius of 0.80 cm? (The density of magnesium is 1.74 g/cm3.)

Classify the following as either a physical or a chemical property: Ice melts at 0oC.

Atoms, Molecules, and Ions

Stoichiometry

Reactions in Aqueous Solution

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

The Periodic Table

Chemical Bonding I: the Covalent Bond

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

The Chemistry of Coordination Compounds

Nuclear Chemistry

Organic Polymerssynthetic and Natural

Filters

How many cubic centimeters of an ore containing only 0.22% gold (by mass)must be processed to obtain $100 worth of gold? The density of the ore is 8.0 g/cm³ and the price of gold is $818 per troy ounce. (14.6 troy oz = 1.0 ordinary pound, called an avoirdupois pound; 1 lb = 454 g)

The highest temperature ever recorded in Phoenix, Arizona, was 122^$\circ$F. Express this temperature in ^$\circ$C.

The volume of a sphere is given by V = (4/3) $\pi$ r³ where r is the radius. What is the mass of a magnesium sphere with a radius of 0.80 cm? (The density of magnesium is 1.74 g/cm³.)

Classify the following as either a physical or a chemical property: Ice melts at 0^oC.