Question 1

Which of the following is an example of a polymer?

Accepted Answer

A)  polyvinyl chloride 
B)  polystyrene 
C)  nylon 
D)  polyurethane 
E)  all of the above 
A)  polyvinyl chloride 
B)  polystyrene 
C)  nylon 
D)  polyurethane 
E)  all of the above E

Question 2

When an X-ray beam strikes the surface of a crystal with a lattice spacing of 145 nm,it produces a maximum reflection at an angle of 41.0°.What is the wavelength of the X-ray with a value of n=1?

Accepted Answer

A)  130° 
B)  164° 
C)  158° 
D)  190° 
E)  167° 
A)  130° 
B)  164° 
C)  158° 
D)  190° 
E)  167° D

Question 3

Identify the type of solid for ice.

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 D

Question 4

Which of the following represent the addition polymer formed from the compound below?
CH2=CH-CH3

Accepted Answer

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

Question 5

Give the coordination number for a body-centered cubic cell.

Accepted Answer

A)  0 
B)  6 
C)  8 
D)  10 
E)  12 
A)  0 
B)  6 
C)  8 
D)  10 
E)  12

Question 6

Vanadium crystallizes in a body centered cubic structure.If the edge length of the unit cell is 301 pm,what is the radius?

Accepted Answer

A)  238 pm 
B)  301 pm 
C)  130 pm 
D)  89.0 pm 
E)  157 pm 
A)  238 pm 
B)  301 pm 
C)  130 pm 
D)  89.0 pm 
E)  157 pm

Question 7

What is the edge length of a face-centered cubic unit cell made up of atoms having a radius of 128 pm?

Accepted Answer

A)  181 pm 
B)  362 pm 
C)  512 pm 
D)  1020 pm 
A)  181 pm 
B)  362 pm 
C)  512 pm 
D)  1020 pm

Question 8

Identify the type of solid for AgCl.

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

Diamond crystallizes in a cubic lattice with an edge length of 357 pm.If there are a total of 8 carbon atoms in the unit cell,what is the density of diamond?

Accepted Answer

A)  12.9 g/cm3 
B)  3.54 g/cm3 
C)  8.26 g/cm3 
D)  2.26 g/cm3 
E)  6.20 g/cm3 
A)  12.9 g/cm3 
B)  3.54 g/cm3 
C)  8.26 g/cm3 
D)  2.26 g/cm3 
E)  6.20 g/cm3

Question 10

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

Accepted Answer

A)  CO2 
B)  SrS 
C)  Kr 
D)  F2 
E)  MgO 
A)  CO2 
B)  SrS 
C)  Kr 
D)  F2 
E)  MgO

Question 11

Vanadium crystallizes in a body centered cubic structure and has an atomic radius of 131 pm.Determine the density of vanadium,if the edge length of a bcc structure is 4r/   .

Accepted Answer

A)  3.06 g/cm3 
B)  12.2 g/cm3 
C)  6.11 g/cm3 
D)  2.77 g/cm3 
E)  8.46 g/cm3 
A)  3.06 g/cm3 
B)  12.2 g/cm3 
C)  6.11 g/cm3 
D)  2.77 g/cm3 
E)  8.46 g/cm3

Question 12

Lithium crystallizes in a body-centered cubic structure.What is the coordination number of each atom?

Accepted Answer

A)  4 
B)  6 
C)  8 
D)  12 
A)  4 
B)  6 
C)  8 
D)  12

Question 13

Which of the following is considered an ionic solid?

Accepted Answer

A)  (NH4)2CO3 
B)  CBr4 
C)  SeBr2 
D)  XeF4 
E)  None of these is an ionic solid. 
A)  (NH4)2CO3 
B)  CBr4 
C)  SeBr2 
D)  XeF4 
E)  None of these is an ionic solid.

Question 14

Which of the following forms an ionic solid?

Accepted Answer

A)  Ag 
B)  C7H15NH2 
C)  Rb I  
D)  S O3 
A)  Ag 
B)  C7H15NH2 
C)  Rb I  
D)  S O3

Question 15

Nickel has a face-centered cubic structure and has a density of 8.90 g/cm3.What is its atomic radius?

Accepted Answer

A)  125 pm 
B)  249 pm 
C)  353 pm 
D)  997 pm 
A)  125 pm 
B)  249 pm 
C)  353 pm 
D)  997 pm

Question 16

Which of the following is considered an atomic solid?

Accepted Answer

A)  F2 
B)  CsBr 
C)  N2 
D)  Nb 
E)  None of these is an atomic solid. 
A)  F2 
B)  CsBr 
C)  N2 
D)  Nb 
E)  None of these is an atomic solid.

Question 17

Cesium has a radius of 272 pm and crystallizes in a body-centered cubic structure.What is the edge length of the unit cell?

Accepted Answer

A)  314 pm 
B)  385 pm 
C)  544 pm 
D)  628 pm 
A)  314 pm 
B)  385 pm 
C)  544 pm 
D)  628 pm

Question 18

Identify the type of solid for argon.

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 19

Determine the radius of an Al atom (in pm)if the density of aluminum is 2.71 g/cm3.Aluminum crystallizes in a face centered cubic structure with an edge length of 2   r.

Accepted Answer

A)  143 pm 
B)  227 pm 
C)  96 pm 
D)  172 pm 
E)  193 pm 
A)  143 pm 
B)  227 pm 
C)  96 pm 
D)  172 pm 
E)  193 pm

Question 20

When an X-ray beam with a wavelength of 180 pm strikes the surface of a crystal,it produces a maximum reflection at an angle of 54.0°.If n=1,what is the separation between layers of atoms in the crystal?

Accepted Answer

A)  151 nm 
B)  38.9 mm 
C)  111 nm 
D)  55.3 nm 
E)  83.5 nm 
A)  151 nm 
B)  38.9 mm 
C)  111 nm 
D)  55.3 nm 
E)  83.5 nm

Exam 13: Crystalline Solids and Modern Materials

Which of the following is an example of a polymer?

When an X-ray beam strikes the surface of a crystal with a lattice spacing of 145 nm,it produces a maximum reflection at an angle of 41.0°.What is the wavelength of the X-ray with a value of n=1?

Identify the type of solid for ice.

Which of the following represent the addition polymer formed from the compound below? CH2=CH-CH3

Give the coordination number for a body-centered cubic cell.

Vanadium crystallizes in a body centered cubic structure.If the edge length of the unit cell is 301 pm,what is the radius?

What is the edge length of a face-centered cubic unit cell made up of atoms having a radius of 128 pm?

Identify the type of solid for AgCl.

Diamond crystallizes in a cubic lattice with an edge length of 357 pm.If there are a total of 8 carbon atoms in the unit cell,what is the density of diamond?

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

Vanadium crystallizes in a body centered cubic structure and has an atomic radius of 131 pm.Determine the density of vanadium,if the edge length of a bcc structure is 4r/ .

Lithium crystallizes in a body-centered cubic structure.What is the coordination number of each atom?

Which of the following is considered an ionic solid?

Which of the following forms an ionic solid?

Nickel has a face-centered cubic structure and has a density of 8.90 g/cm3.What is its atomic radius?

Which of the following is considered an atomic solid?

Cesium has a radius of 272 pm and crystallizes in a body-centered cubic structure.What is the edge length of the unit cell?

Identify the type of solid for argon.

Determine the radius of an Al atom (in pm)if the density of aluminum is 2.71 g/cm3.Aluminum crystallizes in a face centered cubic structure with an edge length of 2 r.

When an X-ray beam with a wavelength of 180 pm strikes the surface of a crystal,it produces a maximum reflection at an angle of 54.0°.If n=1,what is the separation between layers of atoms in the crystal?

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

Which of the following represent the addition polymer formed from the compound below? CH₂=CH-CH₃

Nickel has a face-centered cubic structure and has a density of 8.90 g/cm³.What is its atomic radius?

Determine the radius of an Al atom (in pm)if the density of aluminum is 2.71 g/cm³.Aluminum crystallizes in a face centered cubic structure with an edge length of 2 r.