Question 1

________ ________ and ________ are polymers that have been used in total joint replacements.

Accepted Answer

Polymethyl methacrylate; polyethylene

Question 2

What type of polymer is represented by the following repeating segment?

Accepted Answer

A)  Polyamide 
B)  Polyester 
C)  Polyether 
D)  Polyolefin 
E)  Polyethylene 
A)  Polyamide 
B)  Polyester 
C)  Polyether 
D)  Polyolefin 
E)  Polyethylene B

Question 3

Which one of these molecules could not serve as a monomer for an addition polymer?

Accepted Answer

A)  ClCH=CH2 
B)  H2C=CH-CN 
C)  H2C=CH-C6H5  
D)    
E)    
A)  ClCH=CH2 
B)  H2C=CH-CN 
C)  H2C=CH-C6H5  
D)    
E)    E

Question 4

Most high-temperature superconducting materials are

Accepted Answer

A)  metals. 
B)  metal chlorides. 
C)  polymers. 
D)  fullerenes. 
E)  ceramics. 
A)  metals. 
B)  metal chlorides. 
C)  polymers. 
D)  fullerenes. 
E)  ceramics.

Question 5

Polyacrylonitrile, characterized by the following repeating unit, is made from which of these monomers?

Accepted Answer

A)  CH3CH2CN 
B)  HOCH2CH2CH3 
C)  CH3CH=CHCN 
D)  CH2=CHCN 
E)  CH2=CNCH3 
A)  CH3CH2CN 
B)  HOCH2CH2CH3 
C)  CH3CH=CHCN 
D)  CH2=CHCN 
E)  CH2=CNCH3

Question 6

________ is the process of preparing ceramics by heating a slurry of a powder of the inorganic substance in water to a very high temperature under high pressure.

Accepted Answer

The answer of ________ is the process of preparing ceramics...

Question 7

What is meant by HIPS?

Accepted Answer

A)  High polysaccharides 
B)  High in polysaccharides 
C)  Highly ionic polymer solution 
D)  High-impact polystyrene 
E)  Highly ionic protein solution 
A)  High polysaccharides 
B)  High in polysaccharides 
C)  Highly ionic polymer solution 
D)  High-impact polystyrene 
E)  Highly ionic protein solution

Question 8

Which element, or combination of elements, could produce a semiconductor with the following band structure? (CB = conduction band, VB = valence band)

Accepted Answer

A)  Pure Si 
B)  Si and C 
C)  Si and In 
D)  Si and Sb 
E)  Si and F 
A)  Pure Si 
B)  Si and C 
C)  Si and In 
D)  Si and Sb 
E)  Si and F

Question 9

Which of the following is a synthetic polymer?

Accepted Answer

A)  cellulose 
B)  polyisoprene 
C)  DNA 
D)  poly(hexamethyleneadipamide) 
E)  enzymes 
A)  cellulose 
B)  polyisoprene 
C)  DNA 
D)  poly(hexamethyleneadipamide) 
E)  enzymes

Question 10

What is the name of the condensation copolymer formed from ethylene glycol (a diol-a molecule with two alcohol groups) and para-terephthalic acid (a diacid-a molecule with two carboxy groups)?

Accepted Answer

A)  Nylon 6,6 
B)  Kevlar 
C)  Polystyrene 
D)  Dacron 
E)  Styrofoam 
A)  Nylon 6,6 
B)  Kevlar 
C)  Polystyrene 
D)  Dacron 
E)  Styrofoam

Question 11

Which monomer, when polymerized, results in the polymer polystyrene?

Accepted Answer

A)  CF2=CF2 
B)  CCl2=CF2 
C)  C6H5-CH=CH2  
D)  CH3CH=CH2 
E)  CH3CH=CH2CH3 
A)  CF2=CF2 
B)  CCl2=CF2 
C)  C6H5-CH=CH2  
D)  CH3CH=CH2 
E)  CH3CH=CH2CH3

Question 12

________ are materials that can stretch or bend and then return to their original shape as long as elasticity limits are not exceeded.

Accepted Answer

The answer of ________ are materials that can stretch or...

Question 13

What is the name of the substance made from two or more substances with different properties that remain separate in the bulk material?

Accepted Answer

A)  Composite material 
B)  Bipolymer 
C)  Copolymer 
D)  Dipolymer 
E)  Matrix material 
A)  Composite material 
B)  Bipolymer 
C)  Copolymer 
D)  Dipolymer 
E)  Matrix material

Question 14

What type of polymer is represented by the following repeating segment?

Accepted Answer

A)  Polyamide 
B)  Polyester 
C)  Polyether 
D)  Polyolefin 
E)  Polyethylene 
A)  Polyamide 
B)  Polyester 
C)  Polyether 
D)  Polyolefin 
E)  Polyethylene

Question 15

Materials with a small energy gap between the valence band and the conduction band are called

Accepted Answer

A)  conductors. 
B)  insulators. 
C)  metals. 
D)  semiconductors. 
E)  nonconductors. 
A)  conductors. 
B)  insulators. 
C)  metals. 
D)  semiconductors. 
E)  nonconductors.

Question 16

Polymers where the substituents are oriented randomly along the polymer chain are called ________.

Accepted Answer

The answer of Polymers where the substituents are oriented randomly...

Question 17

What is the name given to the polymers that can be melted and reshaped or heated and bent?

Accepted Answer

A)  Flex polymers 
B)  Thermal polymers 
C)  T-polymers 
D)  Thermoplastic polymers 
E)  Thermosetting polymers 
A)  Flex polymers 
B)  Thermal polymers 
C)  T-polymers 
D)  Thermoplastic polymers 
E)  Thermosetting polymers

Question 18

The segment   represents the polymer named

Accepted Answer

A)  polyethylene. 
B)  polyvinyl chloride. 
C)  polystyrene. 
D)  polybutylene. 
E)  polypropylene. 
A)  polyethylene. 
B)  polyvinyl chloride. 
C)  polystyrene. 
D)  polybutylene. 
E)  polypropylene.

Question 19

What is one of the most common uses of polystyrene?

Accepted Answer

A)  2-L soda bottles 
B)  Styrofoam cups 
C)  Plastic pipes 
D)  Plastic food bags 
E)  Plastic garbage cans 
A)  2-L soda bottles 
B)  Styrofoam cups 
C)  Plastic pipes 
D)  Plastic food bags 
E)  Plastic garbage cans

Question 20

What is a material called that can stretch or bend and then return to its original shape as long as certain limits are not exceeded?

Accepted Answer

A)  Glue 
B)  Elongater 
C)  Extender 
D)  Flexi-polymer 
E)  Elastomer 
A)  Glue 
B)  Elongater 
C)  Extender 
D)  Flexi-polymer 
E)  Elastomer

Exam 12: Modern Materials

________ ________ and ________ are polymers that have been used in total joint replacements.

What type of polymer is represented by the following repeating segment?

Which one of these molecules could not serve as a monomer for an addition polymer?

Most high-temperature superconducting materials are

Polyacrylonitrile, characterized by the following repeating unit, is made from which of these monomers?

________ is the process of preparing ceramics by heating a slurry of a powder of the inorganic substance in water to a very high temperature under high pressure.

What is meant by HIPS?

Which element, or combination of elements, could produce a semiconductor with the following band structure? (CB = conduction band, VB = valence band)

Which of the following is a synthetic polymer?

What is the name of the condensation copolymer formed from ethylene glycol (a diol-a molecule with two alcohol groups) and para-terephthalic acid (a diacid-a molecule with two carboxy groups)?

Which monomer, when polymerized, results in the polymer polystyrene?

________ are materials that can stretch or bend and then return to their original shape as long as elasticity limits are not exceeded.

What is the name of the substance made from two or more substances with different properties that remain separate in the bulk material?

What type of polymer is represented by the following repeating segment?

Materials with a small energy gap between the valence band and the conduction band are called

Polymers where the substituents are oriented randomly along the polymer chain are called ________.

What is the name given to the polymers that can be melted and reshaped or heated and bent?

The segment represents the polymer named

What is one of the most common uses of polystyrene?

What is a material called that can stretch or bend and then return to its original shape as long as certain limits are not exceeded?

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

and are polymers that have been used in total joint replacements.