Question 1

An allotrope of carbon that consists of flat sheets of carbon atoms covalently bonded together as interconnected hexagonal rings is called

Accepted Answer

A)  an octahedral. 
B)  a nanotube. 
C)  a diamond. 
D)  a fullerene. 
E)  graphite. 
A)  an octahedral. 
B)  a nanotube. 
C)  a diamond. 
D)  a fullerene. 
E)  graphite.

Question 2

Which of the following forms an ionic solid?

Accepted Answer

A)  Co 
B)  C4H9NH2 
C)  NH4NO3 
D)  SO3 
A)  Co 
B)  C4H9NH2 
C)  NH4NO3 
D)  SO3

Question 3

Which of the following is considered an ionic solid?

Accepted Answer

A)  (NH4)2CO3 
B)  CCl4 
C)  OCBr2 
D)  XeF4 
E)  None of these is an ionic solid. 
A)  (NH4)2CO3 
B)  CCl4 
C)  OCBr2 
D)  XeF4 
E)  None of these is an ionic solid.

Question 4

Which of the following forms a molecular solid?

Accepted Answer

A)  NH4NO3 
B)  C10H22   
C)  C, diamond 
D)  silver 
A)  NH4NO3 
B)  C10H22   
C)  C, diamond 
D)  silver

Question 5

Identify a use for glass.

Accepted Answer

A)  beakers 
B)  bridges 
C)  furniture 
D)  wooden decks 
E)  bricks 
A)  beakers 
B)  bridges 
C)  furniture 
D)  wooden decks 
E)  bricks

Question 6

Identify the addition polymer.

Accepted Answer

A)  polyurethane 
B)  polypropylene 
C)  polyethylene terephthalate 
D)  nylon 6,6 
E)  polyester 
A)  polyurethane 
B)  polypropylene 
C)  polyethylene terephthalate 
D)  nylon 6,6 
E)  polyester

Question 7

Identify the compound that has the same structure as calcium sulfide.

Accepted Answer

A)  silver iodide 
B)  barium chloride 
C)  potassium bromide 
D)  cesium chloride 
E)  water 
A)  silver iodide 
B)  barium chloride 
C)  potassium bromide 
D)  cesium chloride 
E)  water

Question 8

Identify an element that is added to glass to give it a higher index of refraction and a more brilliant appearance than soda-lime glass.

Accepted Answer

A)  calcium 
B)  sodium 
C)  lead 
D)  boron 
E)  potassium 
A)  calcium 
B)  sodium 
C)  lead 
D)  boron 
E)  potassium

Question 9

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 10

Identify the element that is the best insulator.

Accepted Answer

A)  lead 
B)  silicon 
C)  germanium 
D)  carbon 
E)  tin 
A)  lead 
B)  silicon 
C)  germanium 
D)  carbon 
E)  tin

Question 11

NaCl 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 NaCl?

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

Question 12

Identify the unit cell that has α = β = γ = 90°.

Accepted Answer

A)  cubic 
B)  rhombohedral 
C)  tetrahedral 
D)  monoclinic 
A)  cubic 
B)  rhombohedral 
C)  tetrahedral 
D)  monoclinic

Question 13

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 14

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 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

Identify the compound that has the zinc blende structure.

Accepted Answer

A)  silver iodide 
B)  barium chloride 
C)  potassium bromide 
D)  cesium chloride 
E)  water 
A)  silver iodide 
B)  barium chloride 
C)  potassium bromide 
D)  cesium chloride 
E)  water

Question 17

A common use of polyethylene terephthalate is

Accepted Answer

A)  tire cord. 
B)  fishing line. 
C)  foam cups. 
D)  spray-on insulation. 
E)  films. 
A)  tire cord. 
B)  fishing line. 
C)  foam cups. 
D)  spray-on insulation. 
E)  films.

Question 18

Identify two-dimensional graphite.

Accepted Answer

A)  buckyball 
B)  diamond 
C)  graphene 
D)  fullerene 
E)  charcoal 
A)  buckyball 
B)  diamond 
C)  graphene 
D)  fullerene 
E)  charcoal

Question 19

Identify the compound that has the same structure as sodium chloride.

Accepted Answer

A)  silver iodide 
B)  barium chloride 
C)  potassium bromide 
D)  cesium chloride 
E)  water 
A)  silver iodide 
B)  barium chloride 
C)  potassium bromide 
D)  cesium chloride 
E)  water

Question 20

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

Exam 12: Solids and Modern Materials

An allotrope of carbon that consists of flat sheets of carbon atoms covalently bonded together as interconnected hexagonal rings is called

Which of the following forms an ionic solid?

Which of the following is considered an ionic solid?

Which of the following forms a molecular solid?

Identify a use for glass.

Identify the addition polymer.

Identify the compound that has the same structure as calcium sulfide.

Identify an element that is added to glass to give it a higher index of refraction and a more brilliant appearance than soda-lime glass.

Identify the type of solid for argon.

Identify the element that is the best insulator.

NaCl 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 NaCl?

Identify the unit cell that has α = β = γ = 90°.

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/ .

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 substances should have the highest melting point?

Identify the compound that has the zinc blende structure.

A common use of polyethylene terephthalate is

Identify two-dimensional graphite.

Identify the compound that has the same structure as sodium chloride.

Identify the copolymer.

Matter, measurement, and Problem Solving

Atoms and Elements

Molecules,compounds,and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

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

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

NaCl 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 NaCl?

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