Test Bank For Introductory Chemistry Concepts and Critical Thinking 7th Edition

Chapter 3 Matter and Energy

Key Terms

1) What is the term for a homogeneous mixture of two or more metals?

A) alloy

B) compound

C) ductile

D) malleable

E) none of the above

Answer: A

Section: Key Terms

2) What is the term for the smallest particle that represents an element?

A) atom

B) entity

C) iota

D) unit

E) none of the above

Answer: A

Section: Key Terms

3) What is the term for the number that identifies a particular element?

A) atomic number

B) element number

C) mass number

D) substance number

E) none of the above

Answer: A

Section: Key Terms

4) What is the term for the modification of a substance that alters its chemical composition?

A) atomic change

B) chemical change

C) molecular change

D) physical change

E) none of the above

Answer: B

Section: Key Terms

5) What is the term for the abbreviation for the name of a chemical compound that indicates the number of atoms of each element?

A) atomic number

B) atomic notation

C) chemical formula

D) chemical symbol

E) none of the above

Answer: C

Section: Key Terms

6) What is the term for a characteristic of a substance that cannot be observed without changing its chemical formula?

A) atomic property

B) chemical property

C) molecular property

D) physical property

E) none of the above

Answer: B

Section: Key Terms

7) What is the term for the abbreviation for the name of a chemical element?

A) atomic number

B) atomic notation

C) chemical formula

D) chemical symbol

E) none of the above

Answer: D

Section: Key Terms

8) What is the term for a pure substance that can be broken down into two or more substances by chemical reaction?

A) compound

B) element

C) homogeneous

D) matter

E) none of the above

Answer: A

Section: Key Terms

9) What is the term for a direct change of state from a gas to a solid?

A) condensation

B) deposition

C) sublimation

D) vaporization

E) none of the above

Answer: B

Section: Key Terms

10) What is the term for the property of a metal to be drawn into a wire?

A) alloy

B) ductile

C) malleable

D) tensile

E) none of the above

Answer: B

Section: Key Terms