Question 1

The monomer that is polymerized to make natural rubber is ________.

Accepted Answer

A) isoprene 
B) ethylene 
C) styrene 
D) urethane 
E) propylene 
A) isoprene 
B) ethylene 
C) styrene 
D) urethane 
E) propylene

Question 2

Which of the following is not a natural polymer?

Accepted Answer

A) silk 
B) starch 
C) protein 
D) cellulose 
E) nylon 
A) silk 
B) starch 
C) protein 
D) cellulose 
E) nylon

Question 3

The transition metals in group ________ have the highest melting points.

Accepted Answer

A) 4B 
B) 3B 
C) 6B 
D) 8B 
E) 2B 
A) 4B 
B) 3B 
C) 6B 
D) 8B 
E) 2B

Question 4

________ are solid-state materials that can be made either semiconducting or metallic without any doping.

Accepted Answer

The answer of ________ are solid-state materials that can be...

Question 5

Of the following, only ________ is not a polymer.

Accepted Answer

A) dental amalgam 
B) cellulose 
C) Teflon 
D) plastic 
E) protein 
A) dental amalgam 
B) cellulose 
C) Teflon 
D) plastic 
E) protein

Question 6

Which of the following is not an alloy?

Accepted Answer

A) elemental gold 
B) sterling silver 
C) 18-karat gold 
D) dental amalgam 
E) bronze 
A) elemental gold 
B) sterling silver 
C) 18-karat gold 
D) dental amalgam 
E) bronze

Question 7

Which property of metals cannot be explained with the electron-sea model?

Accepted Answer

A) shine 
B) high thermal conductivity 
C) high electric conductivity 
D) malleability and ductility 
E) trends in melting points 
A) shine 
B) high thermal conductivity 
C) high electric conductivity 
D) malleability and ductility 
E) trends in melting points

Question 8

Which of the following is not a type of solid?

Accepted Answer

A) ionic 
B) molecular 
C) supercritical 
D) metallic 
E) covalent network 
A) ionic 
B) molecular 
C) supercritical 
D) metallic 
E) covalent network

Question 9

An ionic solid, NaCl (s), dissolves in water because of the ________.

Accepted Answer

A) relatively low lattice energy due to small charges of Na+ and Cl- ions 
B) simple face-centered cubic unit cell type it forms 
C) 1:1 ratio of ions in the unit cell 
D) strong coulombic interactions between oppositely charged ions 
E) relatively low melting point 
A) relatively low lattice energy due to small charges of Na+ and Cl- ions 
B) simple face-centered cubic unit cell type it forms 
C) 1:1 ratio of ions in the unit cell 
D) strong coulombic interactions between oppositely charged ions 
E) relatively low melting point

Question 10

Potassium metal crystallizes in a body-centered cubic structure with a unit cell edge length of 5.31 Å. The radius of a potassium atom is ________ Å.

Accepted Answer

A) 1.33 
B) 1.88 
C) 2.30 
D) 2.66 
E) 5.31 
A) 1.33 
B) 1.88 
C) 2.30 
D) 2.66 
E) 5.31

Question 11

What two metals are alloyed to produce sterling silver?

Accepted Answer

The answer of What two metals are alloyed to produce...

Question 12

Consider the following statements about crystalline solids: (i)Molecules or atoms in molecular solids are held together via
Intermolecular forces.
(ii)Metallic solids have atoms in the points of the crystal lattice.
(iii)Ionic solids have formula units in the point of the crystal lattice.
(iv)Atoms in covalent-network solids are connected via a network
Of covalent bonds.
Which of the statements is false?

Accepted Answer

A) (i) 
B) (ii) 
C) (iii) 
D) (iv) 
E) none 
A) (i) 
B) (ii) 
C) (iii) 
D) (iv) 
E) none

Question 13

Silicon technology is based on the fact that silicon oxide is a chemically stable conductor.

Accepted Answer

A) True 
 B)False

Question 14

Many metals are ductile, which means that they can be hammered into thin sheets.

Accepted Answer

A) True 
 B)False

Question 15

A category ________ plastic container will generally be the most easily recycled.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 22 
A) 1 
B) 2 
C) 3 
D) 4 
E) 22

Question 16

What fraction of the volume of each corner atom is actually within the volume of a face-centered cubic unit cell?

Accepted Answer

A) 1 
B) 1/2 
C) 1/4 
D) 1/8 
E) 1/16 
A) 1 
B) 1/2 
C) 1/4 
D) 1/8 
E) 1/16

Question 17

The correct abbreviation for the polymer low-density polyethylene is ________.

Accepted Answer

A) LDPE 
B) PP 
C) P 
D) PETE 
E) HDPE 
A) LDPE 
B) PP 
C) P 
D) PETE 
E) HDPE

Question 18

CsCl crystallizes in a unit cell that contains the Cs+ ion at the center of a cube that has a Cl- at each corner. Each unit cell contains ________ Cs+ ion(s)and ________ Cl- ion(s), respectively.

Accepted Answer

A) 1 and 8 
B) 2 and 1 
C) 1 and 1 
D) 2 and 2 
E) 2 and 4 
A) 1 and 8 
B) 2 and 1 
C) 1 and 1 
D) 2 and 2 
E) 2 and 4

Question 19

Polyethylene is formed by a condensation reaction.

Accepted Answer

A) True 
 B)False

Question 20

Semiconductors are less conductive than metals because of ________ gap.

Accepted Answer

The answer of Semiconductors are less conductive than metals because...

Exam 12: Solids and Modern Materials

The monomer that is polymerized to make natural rubber is ________.

Which of the following is not a natural polymer?

The transition metals in group ________ have the highest melting points.

________ are solid-state materials that can be made either semiconducting or metallic without any doping.

Of the following, only ________ is not a polymer.

Which of the following is not an alloy?

Which property of metals cannot be explained with the electron-sea model?

Which of the following is not a type of solid?

An ionic solid, NaCl (s), dissolves in water because of the ________.

Potassium metal crystallizes in a body-centered cubic structure with a unit cell edge length of 5.31 Å. The radius of a potassium atom is ________ Å.

What two metals are alloyed to produce sterling silver?

Silicon technology is based on the fact that silicon oxide is a chemically stable conductor.

Many metals are ductile, which means that they can be hammered into thin sheets.

A category ________ plastic container will generally be the most easily recycled.

What fraction of the volume of each corner atom is actually within the volume of a face-centered cubic unit cell?

The correct abbreviation for the polymer low-density polyethylene is ________.

CsCl crystallizes in a unit cell that contains the Cs+ ion at the center of a cube that has a Cl- at each corner. Each unit cell contains ________ Cs+ ion(s)and ________ Cl- ion(s), respectively.

Polyethylene is formed by a condensation reaction.

Semiconductors are less conductive than metals because of ________ gap.

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

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CsCl crystallizes in a unit cell that contains the Cs⁺ ion at the center of a cube that has a Cl^- at each corner. Each unit cell contains Cs⁺ ion(s)and Cl^- ion(s), respectively.