Question 1

Gold crystallizes in a face-centered cubic structure.What is the edge length of the unit cell if the atomic radius of gold is 144 pm?

Accepted Answer

A)  204 pm 
B)  288 pm 
C)  333 pm 
D)  407 pm 
A)  204 pm 
B)  288 pm 
C)  333 pm 
D)  407 pm

Question 2

A metal crystallizes in a face centered cubic structure and has a density of 11.9 g/cm3.If the radius of the metal atom is 138 pm,what is the identity of the metal?

Accepted Answer

A)  At 
B)  Pd 
C)  Mn 
D)  Fe 
E)  Cr 
A)  At 
B)  Pd 
C)  Mn 
D)  Fe 
E)  Cr

Question 3

Which of the following forms a molecular solid?

Accepted Answer

A)  CaO    
B)  C10H22   
C)  C, graphite 
D)  gold 
A)  CaO    
B)  C10H22   
C)  C, graphite 
D)  gold

Question 4

Which of the following represent the addition polymer formed from the compound below?
CH2=CHCl

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 5

Which of the following can act as a p-type semiconductor for silicon?

Accepted Answer

A)  fluorine 
B)  gallium 
C)  oxygen 
D)  phosphorus 
E)  arsenic 
A)  fluorine 
B)  gallium 
C)  oxygen 
D)  phosphorus 
E)  arsenic

Question 6

A common use of polyethylene is

Accepted Answer

A)  insulation. 
B)  bottles. 
C)  pipe fitting. 
D)  film for meat packaging. 
E)  carpet fibers. 
A)  insulation. 
B)  bottles. 
C)  pipe fitting. 
D)  film for meat packaging. 
E)  carpet fibers.

Question 7

How many H- ions are around each Na+ ion in NaH,which has a cubic unit cell with H- ions on each corner and each face?

Accepted Answer

A)  1 
B)  4 
C)  6 
D)  8 
A)  1 
B)  4 
C)  6 
D)  8

Question 8

Identify the type of solid for diamond.

Accepted Answer

A)  metallic atomic solid 
B)  ionic solid 
C)  nonbonding atomic solid 
D)  molecular solid 
E)  networking atomic solid 
A)  metallic atomic solid 
B)  ionic solid 
C)  nonbonding atomic solid 
D)  molecular solid 
E)  networking atomic solid

Question 9

Identify the copolymer.

Accepted Answer

A)  nylon 6,6 
B)  polyvinyl chloride 
C)  polyethylene 
D)  polypropylene 
E)  polystyrene 
A)  nylon 6,6 
B)  polyvinyl chloride 
C)  polyethylene 
D)  polypropylene 
E)  polystyrene

Question 10

In a semiconductor,the bonding molecular orbitals that contain electrons are referred to as the ________,while the antibonding orbitals that are completely empty are referred to as the ________.

Accepted Answer

A)  single bond, antibond 
B)  conduction band, valence band 
C)  valence band, conduction band 
D)  n-type, p-type 
E)  p-type, n-type 
A)  single bond, antibond 
B)  conduction band, valence band 
C)  valence band, conduction band 
D)  n-type, p-type 
E)  p-type, n-type

Question 11

All of the following are examples of allotropes of carbon EXCEPT

Accepted Answer

A)  graphite 
B)  glass 
C)  diamond 
D)  graphine 
E)  all of the above 
A)  graphite 
B)  glass 
C)  diamond 
D)  graphine 
E)  all of the above

Question 12

When an X-ray beam with a wavelength of 120 pm strikes the surface of a crystal with a lattice spacing of 165 nm,what is the maximum reflection angle with a value of n=1?

Accepted Answer

A)  54.0° 
B)  21.3° 
C)  32.6° 
D)  18.4° 
E)  38.3° 
A)  54.0° 
B)  21.3° 
C)  32.6° 
D)  18.4° 
E)  38.3°

Question 13

A polymer that eliminates an atom or small group of atoms is known as a(n)

Accepted Answer

A)  addition polymer 
B)  condensation polymer 
C)  dimer 
D)  copolymer 
E)  substituted polymer 
A)  addition polymer 
B)  condensation polymer 
C)  dimer 
D)  copolymer 
E)  substituted polymer

Question 14

A common use of polyvinyl chloride is

Accepted Answer

A)  plumbing. 
B)  paint. 
C)  plastic bottles. 
D)  styrofoam. 
E)  all of the above. 
A)  plumbing. 
B)  paint. 
C)  plastic bottles. 
D)  styrofoam. 
E)  all of the above.

Question 15

Which of the following substances should have the highest melting point?

Accepted Answer

A)  Fe 
B)  Ne 
C)  Xe 
D)  N2 
E)  CO 
A)  Fe 
B)  Ne 
C)  Xe 
D)  N2 
E)  CO

Question 16

What material needs to be added to portland cement in order to form concrete?

Accepted Answer

A)  neon 
B)  nitrogen 
C)  lead 
D)  sand 
E)  soda ash 
A)  neon 
B)  nitrogen 
C)  lead 
D)  sand 
E)  soda ash

Question 17

Identify the type of solid for gold.

Accepted Answer

A)  metallic atomic solid 
B)  ionic solid 
C)  nonbonding atomic solid 
D)  molecular solid 
E)  networking atomic solid 
A)  metallic atomic solid 
B)  ionic solid 
C)  nonbonding atomic solid 
D)  molecular solid 
E)  networking atomic solid

Question 18

Which of the following is considered a nonbonding atomic solid?

Accepted Answer

A)  Ne 
B)  Cu 
C)  I2 
D)  Ca 
E)  K 
A)  Ne 
B)  Cu 
C)  I2 
D)  Ca 
E)  K

Question 19

Which of the following is considered a molecular solid?

Accepted Answer

A)  Au 
B)  NH4NO3 
C)  I2 
D)  Rn 
E)  None of these is a molecular solid. 
A)  Au 
B)  NH4NO3 
C)  I2 
D)  Rn 
E)  None of these is a molecular solid.

Question 20

Na Cl crystallizes in a cubic unit cell with Cl- ions on each corner and each face.How many Na+ and Cl- ions are in each unit cell of Na Cl?

Accepted Answer

A)  1 Na+ ion and 1 Cl- ion 
B)  2 Na+ ions and 2 Cl- ions 
C)  4 Na+ ions and 4 Cl- ions 
D)  8 Na+ ions and 8 Cl- ions 
A)  1 Na+ ion and 1 Cl- ion 
B)  2 Na+ ions and 2 Cl- ions 
C)  4 Na+ ions and 4 Cl- ions 
D)  8 Na+ ions and 8 Cl- ions

Exam 13: Crystalline Solids and Modern Materials

Gold crystallizes in a face-centered cubic structure.What is the edge length of the unit cell if the atomic radius of gold is 144 pm?

A metal crystallizes in a face centered cubic structure and has a density of 11.9 g/cm3.If the radius of the metal atom is 138 pm,what is the identity of the metal?

Which of the following forms a molecular solid?

Which of the following represent the addition polymer formed from the compound below? CH2=CHCl

Which of the following can act as a p-type semiconductor for silicon?

A common use of polyethylene is

How many H- ions are around each Na+ ion in NaH,which has a cubic unit cell with H- ions on each corner and each face?

Identify the type of solid for diamond.

Identify the copolymer.

In a semiconductor,the bonding molecular orbitals that contain electrons are referred to as the ________,while the antibonding orbitals that are completely empty are referred to as the ________.

All of the following are examples of allotropes of carbon EXCEPT

When an X-ray beam with a wavelength of 120 pm strikes the surface of a crystal with a lattice spacing of 165 nm,what is the maximum reflection angle with a value of n=1?

A polymer that eliminates an atom or small group of atoms is known as a(n)

A common use of polyvinyl chloride is

Which of the following substances should have the highest melting point?

What material needs to be added to portland cement in order to form concrete?

Identify the type of solid for gold.

Which of the following is considered a nonbonding atomic solid?

Which of the following is considered a molecular solid?

Na Cl crystallizes in a cubic unit cell with Cl- ions on each corner and each face.How many Na+ and Cl- ions are in each unit cell of Na Cl?

Essentials: Units, Measurements, and Problem Solving

Atoms

The Quantum Mechanical Model of the Atom

Periodic Properties of the Elements

Molecules and Compounds

Chemical Bonding I

Chemical Bonding Ii

Chemical Reactions and Chemical Quantities

Introduction to Solutions and Aqueous Reactions

Thermochemistry

Gases

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Transition Metals and Coordination Compounds

Filters

A metal crystallizes in a face centered cubic structure and has a density of 11.9 g/cm³.If the radius of the metal atom is 138 pm,what is the identity of the metal?

Which of the following represent the addition polymer formed from the compound below? CH₂=CHCl

How many H^- ions are around each Na⁺ ion in NaH,which has a cubic unit cell with H^- ions on each corner and each face?

In a semiconductor,the bonding molecular orbitals that contain electrons are referred to as the ,while the antibonding orbitals that are completely empty are referred to as the .

Na Cl crystallizes in a cubic unit cell with Cl^- ions on each corner and each face.How many Na⁺ and Cl^- ions are in each unit cell of Na Cl?