TEST BANK
General Chemistry: The Essential Concepts
Raymond Chang
7th Edition
JN
U
R
SE
,Table of Contents
Chapter 01: Introduction
Chapter 02: Atoms Molecules and Ions
Chapter 03: Stoichiometry
Chapter 04: Reactions in Aqueous Solution
Chapter 05: Gases
Chapter 06: Energy Relationships in Chemical Reactions
Chapter 07: The Electronic Structure of Atoms
Chapter 08: The Periodic Table
Chapter 09: Chemical Bonding I: The Covalent Bond
Chapter 10: Chemical Bonding II: Molecular Geometry and Hybridization of Atomic
Orbitals
Chapter 11: Introduction to Organic Chemistry
JN
Chapter 12: Intermolecular Forces and Liquids and Solids
Chapter 13: Physical Properties of Solutions
Chapter 14: Chemical Kinetics
U
Chapter 15: Chemical Equilibrium
Chapter 16: Acids and Bases
R
Chapter 17: Acid-Base Equilibria and Solubility Equilibria
Chapter 18: Thermodynamics
Chapter 19: Redox Reactions and Electrochemistry
SE
Chapter 20: The Chemistry of Coordination Compounds
Chapter 21: Nuclear Chemistry
Chapter 22: Organic Polymers—Synthetic and Natural
Page 1
,Complete Test Bank
Chapter 01: Introduction
1. A tentative explanation for a set of observations that can be tested by further
experimentation is referred to as
A) a hypothesis. B) a law. C) a theory. D) none of the above.
Ans: A Category: Easy Section: 1.2
2. A concise verbal or mathematical statement of a relationship between phenomena that is
always the same under the same conditions is referred to as
A) a hypothesis. B) a law. C) a theory. D) none of the above.
Ans: B Category: Easy Section: 1.2
3. A unifying principle that explains a body of facts and relations is referred to as
A) a hypothesis. B) a law. C) a theory. D) none of the above.
Ans: C Category: Easy Section: 1.2
JN
4. Complete the following sentence. A hypothesis is
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.
U
C) a unifying principle that explains a body of facts and relations.
D) a model used to visualize the invisible.
Ans: A Category: Easy Section: 1.2
R
5. Complete the following sentence. A scientific law is
SE
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.
Ans: B Category: Easy Section: 1.2
6. Complete the following sentence. A theory is
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.
Ans: C Category: Easy Section: 1.2
Page 2
, Chapter 01: Introduction
7. Choose the response that includes all the items listed below that are pure substances.
i. orange juice ii. steam iii. ocean water iv. oxygen v. vegetable soup
A) i, iii, v B) ii, iv C) i, iii, iv D) iv only E) all of them are pure
Ans: B Category: Easy Section: 1.2
8. Which of the following is an example of a physical property?
A) corrosiveness of sulfuric acid
B) toxicity of cyanide
C) flammability of gasoline
D) neutralization of stomach acid with an antacid
E) lead becomes a liquid when heated to 601 C
Ans: E Category: Easy Section: 1.4
9. Which one of the following is an example of a physical property?
A) dynamite explodes D) ice floats on top of liquid water
B) meat rots if it is not refrigerated E) a silver platter tarnishes
C) gasoline burns
JN
Ans: D Category: Easy Section: 1.4
10. Which one of the following represents a physical change?
A) water, when heated to 100 C, forms steam
B) bleach turns hair yellow
U
C) sugar, when heated, becomes brown
D) milk turns sour
E) apples, when exposed to air, turn brown
R
Ans: A Category: Easy Section: 1.4
11. All of the following are properties of sodium. Which one is a physical property of
SE
sodium?
A) It is a surface turns black when first exposed to air.
B) It is a solid at 25 C and changes to a liquid when heated to 98 C.
C) When placed in water it sizzles and a gas is formed.
D) When placed in contact with chlorine it forms a compound that melts at 801 C.
E) Sodium is never found as the pure metal in nature.
Ans: B Category: Easy Section: 1.4
12. All of the following are properties of tin. Which one is a chemical property of tin?
A) Tin can be hammered into a thin sheet.
B) At –40 C a sheet of tin crumbles to a gray powder.
C) Tin melts at 231.9 C.
D) When a bar of tin is bent, it emits an audible “cry”.
E) Tin erodes when added to hydrochloric acid, and a clear gas forms.
Ans: E Category: Medium Section: 1.4
Page 3
General Chemistry: The Essential Concepts
Raymond Chang
7th Edition
JN
U
R
SE
,Table of Contents
Chapter 01: Introduction
Chapter 02: Atoms Molecules and Ions
Chapter 03: Stoichiometry
Chapter 04: Reactions in Aqueous Solution
Chapter 05: Gases
Chapter 06: Energy Relationships in Chemical Reactions
Chapter 07: The Electronic Structure of Atoms
Chapter 08: The Periodic Table
Chapter 09: Chemical Bonding I: The Covalent Bond
Chapter 10: Chemical Bonding II: Molecular Geometry and Hybridization of Atomic
Orbitals
Chapter 11: Introduction to Organic Chemistry
JN
Chapter 12: Intermolecular Forces and Liquids and Solids
Chapter 13: Physical Properties of Solutions
Chapter 14: Chemical Kinetics
U
Chapter 15: Chemical Equilibrium
Chapter 16: Acids and Bases
R
Chapter 17: Acid-Base Equilibria and Solubility Equilibria
Chapter 18: Thermodynamics
Chapter 19: Redox Reactions and Electrochemistry
SE
Chapter 20: The Chemistry of Coordination Compounds
Chapter 21: Nuclear Chemistry
Chapter 22: Organic Polymers—Synthetic and Natural
Page 1
,Complete Test Bank
Chapter 01: Introduction
1. A tentative explanation for a set of observations that can be tested by further
experimentation is referred to as
A) a hypothesis. B) a law. C) a theory. D) none of the above.
Ans: A Category: Easy Section: 1.2
2. A concise verbal or mathematical statement of a relationship between phenomena that is
always the same under the same conditions is referred to as
A) a hypothesis. B) a law. C) a theory. D) none of the above.
Ans: B Category: Easy Section: 1.2
3. A unifying principle that explains a body of facts and relations is referred to as
A) a hypothesis. B) a law. C) a theory. D) none of the above.
Ans: C Category: Easy Section: 1.2
JN
4. Complete the following sentence. A hypothesis is
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.
U
C) a unifying principle that explains a body of facts and relations.
D) a model used to visualize the invisible.
Ans: A Category: Easy Section: 1.2
R
5. Complete the following sentence. A scientific law is
SE
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.
Ans: B Category: Easy Section: 1.2
6. Complete the following sentence. A theory is
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.
Ans: C Category: Easy Section: 1.2
Page 2
, Chapter 01: Introduction
7. Choose the response that includes all the items listed below that are pure substances.
i. orange juice ii. steam iii. ocean water iv. oxygen v. vegetable soup
A) i, iii, v B) ii, iv C) i, iii, iv D) iv only E) all of them are pure
Ans: B Category: Easy Section: 1.2
8. Which of the following is an example of a physical property?
A) corrosiveness of sulfuric acid
B) toxicity of cyanide
C) flammability of gasoline
D) neutralization of stomach acid with an antacid
E) lead becomes a liquid when heated to 601 C
Ans: E Category: Easy Section: 1.4
9. Which one of the following is an example of a physical property?
A) dynamite explodes D) ice floats on top of liquid water
B) meat rots if it is not refrigerated E) a silver platter tarnishes
C) gasoline burns
JN
Ans: D Category: Easy Section: 1.4
10. Which one of the following represents a physical change?
A) water, when heated to 100 C, forms steam
B) bleach turns hair yellow
U
C) sugar, when heated, becomes brown
D) milk turns sour
E) apples, when exposed to air, turn brown
R
Ans: A Category: Easy Section: 1.4
11. All of the following are properties of sodium. Which one is a physical property of
SE
sodium?
A) It is a surface turns black when first exposed to air.
B) It is a solid at 25 C and changes to a liquid when heated to 98 C.
C) When placed in water it sizzles and a gas is formed.
D) When placed in contact with chlorine it forms a compound that melts at 801 C.
E) Sodium is never found as the pure metal in nature.
Ans: B Category: Easy Section: 1.4
12. All of the following are properties of tin. Which one is a chemical property of tin?
A) Tin can be hammered into a thin sheet.
B) At –40 C a sheet of tin crumbles to a gray powder.
C) Tin melts at 231.9 C.
D) When a bar of tin is bent, it emits an audible “cry”.
E) Tin erodes when added to hydrochloric acid, and a clear gas forms.
Ans: E Category: Medium Section: 1.4
Page 3
