Test bank complete_
Chemistry: the central science 15th edition, (2025)
By brown, lemay, bursten, murphy, woodward & stoltzfus
All chapter 1-24| latest version| verified answers| rated a+
,Chapter 1. Introduction: matter, energy, and measurement -------------------------------------------- 3
Chapter 2. Atoms, molecules, and ions ---------------------------------------------------------------------- 70
Chapter 3. Chemical reactions and reaction stoichiometry -------------------------------------------- 132
Chapter 4. Reactions in aqueous solution ------------------------------------------------------------------ 186
Chapter 5. Thermochemistry ---------------------------------------------------------------------------------- 236
Chapter 6. Electronic structure of atoms ------------------------------------------------------------------- 284
Chapter 7. Periodic properties of the elements ----------------------------------------------------------- 333
Chapter 8. Basic concepts of chemical bonding ---------------------------------------------------------- 377
Chapter 9. Molecular geometry and bonding theories ------------------------------------------------- 416
Chapter 10. Gases ------------------------------------------------------------------------------------------------ 463
Chapter 11. Liquids and intermolecular forces ------------------------------------------------------------ 515
Chapter 12. Solids and modern materials ------------------------------------------------------------------ 549
Chapter 13. Properties of solutions -------------------------------------------------------------------------- 568
Chapter 14. Chemical kinetics --------------------------------------------------------------------------------- 612
Chapter 15. Chemical equilibrium ---------------------------------------------------------------------------- 651
Chapter 16. Acid-base equilibria ----------------------------------------------------------------------------- 683
Chapter 17. Aqueous equilibria: buffers, titrations, and solubility ---------------------------------- 722
Chapter 18. Chemistry of the environment ---------------------------------------------------------------- 755
Chapter 19. Chemical thermodynamics --------------------------------------------------------------------- 786
Chapter 20. Electrochemistry ---------------------------------------------------------------------------------- 825
Chapter 21. Nuclear chemistry -------------------------------------------------------------------------------- 856
Chapter 22. Chemistry of the nonmetals ------------------------------------------------------------------- 900
Chapter 23. Transition metals and coordination chemistry ------------------------------------------- 943
Chapter 24. The chemistry of life: organic and biological chemistry -------------------------------- 977
,Chapter 1. Introduction: matter, energy, and measurement
Theodore e. Brown: chemistry: the central science 15th edition, test bank
1.1 multiple-choice questions
1) what is the physical state in which matter has no specific shape but does have a
specific volume?
A) gas
B) solid
C) liquid
D) salts
E) ice
Answer: c
Liquids have a definite volume but take the shape of their container. Solids have both
definite shape and volume, while gases have neither. Therefore, the correct state is liquid.
Diff: 1 page ref: sec. 1.2
2) the law of constant composition applies to ___.
A) solutions
B) heterogeneous mixtures
C) compounds
D) homogeneous mixtures
E) solids
Answer: c
The law of constant composition (or definite proportions) states that a given compound
always contains its component elements in fixed proportions by mass. This law applies
only to compounds, not mixtures, since mixtures can have variable compositions.
Diff: 1 page ref: sec. 1.2
, 3) a combination of sand, salt, and water is an example of a ___.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid
Answer: b
A heterogeneous mixture consists of visibly different substances or phases. In a mixture
of sand, salt, and water, the components can be seen separately (sand settles, salt
dissolves), making it heterogeneous.
Diff: 1 page ref: sec. 1.2
4) a small amount of salt dissolved in water is an example of a ___.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid
Answer: a
When salt dissolves completely in water, the resulting solution has a uniform
composition throughout, meaning it is a homogeneous mixture (also called a solution).
Diff: 1 page ref: sec. 1.2
5) which one of the following has the element name and symbol correctly matched?
A) p, potassium
B) c, copper
C) mg, manganese
D) ag, silver
E) sn, silicon
Chemistry: the central science 15th edition, (2025)
By brown, lemay, bursten, murphy, woodward & stoltzfus
All chapter 1-24| latest version| verified answers| rated a+
,Chapter 1. Introduction: matter, energy, and measurement -------------------------------------------- 3
Chapter 2. Atoms, molecules, and ions ---------------------------------------------------------------------- 70
Chapter 3. Chemical reactions and reaction stoichiometry -------------------------------------------- 132
Chapter 4. Reactions in aqueous solution ------------------------------------------------------------------ 186
Chapter 5. Thermochemistry ---------------------------------------------------------------------------------- 236
Chapter 6. Electronic structure of atoms ------------------------------------------------------------------- 284
Chapter 7. Periodic properties of the elements ----------------------------------------------------------- 333
Chapter 8. Basic concepts of chemical bonding ---------------------------------------------------------- 377
Chapter 9. Molecular geometry and bonding theories ------------------------------------------------- 416
Chapter 10. Gases ------------------------------------------------------------------------------------------------ 463
Chapter 11. Liquids and intermolecular forces ------------------------------------------------------------ 515
Chapter 12. Solids and modern materials ------------------------------------------------------------------ 549
Chapter 13. Properties of solutions -------------------------------------------------------------------------- 568
Chapter 14. Chemical kinetics --------------------------------------------------------------------------------- 612
Chapter 15. Chemical equilibrium ---------------------------------------------------------------------------- 651
Chapter 16. Acid-base equilibria ----------------------------------------------------------------------------- 683
Chapter 17. Aqueous equilibria: buffers, titrations, and solubility ---------------------------------- 722
Chapter 18. Chemistry of the environment ---------------------------------------------------------------- 755
Chapter 19. Chemical thermodynamics --------------------------------------------------------------------- 786
Chapter 20. Electrochemistry ---------------------------------------------------------------------------------- 825
Chapter 21. Nuclear chemistry -------------------------------------------------------------------------------- 856
Chapter 22. Chemistry of the nonmetals ------------------------------------------------------------------- 900
Chapter 23. Transition metals and coordination chemistry ------------------------------------------- 943
Chapter 24. The chemistry of life: organic and biological chemistry -------------------------------- 977
,Chapter 1. Introduction: matter, energy, and measurement
Theodore e. Brown: chemistry: the central science 15th edition, test bank
1.1 multiple-choice questions
1) what is the physical state in which matter has no specific shape but does have a
specific volume?
A) gas
B) solid
C) liquid
D) salts
E) ice
Answer: c
Liquids have a definite volume but take the shape of their container. Solids have both
definite shape and volume, while gases have neither. Therefore, the correct state is liquid.
Diff: 1 page ref: sec. 1.2
2) the law of constant composition applies to ___.
A) solutions
B) heterogeneous mixtures
C) compounds
D) homogeneous mixtures
E) solids
Answer: c
The law of constant composition (or definite proportions) states that a given compound
always contains its component elements in fixed proportions by mass. This law applies
only to compounds, not mixtures, since mixtures can have variable compositions.
Diff: 1 page ref: sec. 1.2
, 3) a combination of sand, salt, and water is an example of a ___.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid
Answer: b
A heterogeneous mixture consists of visibly different substances or phases. In a mixture
of sand, salt, and water, the components can be seen separately (sand settles, salt
dissolves), making it heterogeneous.
Diff: 1 page ref: sec. 1.2
4) a small amount of salt dissolved in water is an example of a ___.
A) homogeneous mixture
B) heterogeneous mixture
C) compound
D) pure substance
E) solid
Answer: a
When salt dissolves completely in water, the resulting solution has a uniform
composition throughout, meaning it is a homogeneous mixture (also called a solution).
Diff: 1 page ref: sec. 1.2
5) which one of the following has the element name and symbol correctly matched?
A) p, potassium
B) c, copper
C) mg, manganese
D) ag, silver
E) sn, silicon
