Question 1

List three materials that can be used to form the matrix that holds the composite material together.

Accepted Answer

Polyester,

Question 2

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 3

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 4

Polymers where all the substituents are in the same relative orientation are called_______________.

Accepted Answer

The answer of Polymers where all the substituents are in...

Question 5

What is the name of the industrial process in which sulfur (S8)is used to create linkages between individual polymer chains in rubber?

Accepted Answer

A) Rubberization 
B) Vulcanization 
C) Smelting 
D) Sulfonafication 
E) Sulfonation 
A) Rubberization 
B) Vulcanization 
C) Smelting 
D) Sulfonafication 
E) Sulfonation

Question 6

The polymer formed from the monomer CH2=CH-CN is

Accepted Answer

A)    . 
B) (CH2=CHCN)n. 
C) (CH2=CH=CN)n. 
D)    . 
A)    . 
B) (CH2=CHCN)n. 
C) (CH2=CH=CN)n. 
D)    .

Question 7

_____________ 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 8

One characteristic of the monomers that form condensation polymers that is not common in monomers that form addition polymers is

Accepted Answer

A) the presence of alkyl side chains. 
B) their ability to form free radicals. 
C) the presence of pi bonds. 
D) the presence of two functional groups. 
A) the presence of alkyl side chains. 
B) their ability to form free radicals. 
C) the presence of pi bonds. 
D) the presence of two functional groups.

Question 9

What does HDPE mean?

Accepted Answer

High-densi

Question 10

Which of the following is a medical application using polymers?

Accepted Answer

A) Implants 
B) Prosthetics 
C) Wound dressings 
D) All of these choices are correct 
E) None of these choices is correct. 
A) Implants 
B) Prosthetics 
C) Wound dressings 
D) All of these choices are correct 
E) None of these choices is correct.

Question 11

The type of polymerization that yields water as a byproduct is called ____________.

Accepted Answer

The answer of The type of polymerization that yields water...

Question 12

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 13

What type of semiconductor is generated by adding small amounts of gallium to silicon?

Accepted Answer

A) n-type semiconductor 
B) Ga-type semiconductor 
C) p-type semiconductor 
D) insulating semiconductor 
A) n-type semiconductor 
B) Ga-type semiconductor 
C) p-type semiconductor 
D) insulating semiconductor

Question 14

What term is used to describe the relative arrangements of chiral carbon atoms within a polymer?

Accepted Answer

A) Chirality 
B) Handiness 
C) Tacticity 
D) Substituents 
E) Dexterity 
A) Chirality 
B) Handiness 
C) Tacticity 
D) Substituents 
E) Dexterity

Question 15

A polymer made in a polymerization reaction that produces small molecules (such as water)as well as the polymer is classified as a/an _______ polymer.

Accepted Answer

A) addition 
B) natural 
C) condensation 
D) elimination 
E) copolymer 
A) addition 
B) natural 
C) condensation 
D) elimination 
E) copolymer

Question 16

What is the process called that produces particles of nearly uniform size that are much more likely to produce a solid ceramic without gaps or cracks?

Accepted Answer

A) Sintering 
B) Roasting 
C) Firing 
D) Stonewaring 
E) Sol-gel 
A) Sintering 
B) Roasting 
C) Firing 
D) Stonewaring 
E) Sol-gel

Question 17

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 18

An amino acid is a compound that contains at least

Accepted Answer

A) one amino group and one amide group. 
B) two amino groups and one carboxylic acid group. 
C) one hydroxyl group and one methyl group. 
D) one carboxylic acid group and one amino group. 
E) one methyl group and one amide group. 
A) one amino group and one amide group. 
B) two amino groups and one carboxylic acid group. 
C) one hydroxyl group and one methyl group. 
D) one carboxylic acid group and one amino group. 
E) one methyl group and one amide group.

Question 19

What is the trademarked brand name for polytetrafluoroethylene?

Accepted Answer

A) Glad 
B) Reynolds 
C) Saran 
D) PVC 
E) Teflon 
A) Glad 
B) Reynolds 
C) Saran 
D) PVC 
E) Teflon

Question 20

What is the process called to prepare a ceramic by heating a slurry of a powder of an inorganic substance in water to a very high temperature under pressure?

Accepted Answer

A) Sintering 
B) Roasting 
C) Firing 
D) Stonewaring 
E) Sol-gel 
A) Sintering 
B) Roasting 
C) Firing 
D) Stonewaring 
E) Sol-gel

Exam 12: Modern Materials

List three materials that can be used to form the matrix that holds the composite material together.

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)?

Polymers where all the substituents are in the same relative orientation are called_______________.

What is the name of the industrial process in which sulfur (S8)is used to create linkages between individual polymer chains in rubber?

The polymer formed from the monomer CH2=CH-CN is

_____________ 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.

One characteristic of the monomers that form condensation polymers that is not common in monomers that form addition polymers is

What does HDPE mean?

Which of the following is a medical application using polymers?

The type of polymerization that yields water as a byproduct is called ____________.

Polymers where the substituents are oriented randomly along the polymer chain are called_______________.

What type of semiconductor is generated by adding small amounts of gallium to silicon?

What term is used to describe the relative arrangements of chiral carbon atoms within a polymer?

A polymer made in a polymerization reaction that produces small molecules (such as water)as well as the polymer is classified as a/an _______ polymer.

What is the process called that produces particles of nearly uniform size that are much more likely to produce a solid ceramic without gaps or cracks?

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

An amino acid is a compound that contains at least

What is the trademarked brand name for polytetrafluoroethylene?

What is the process called to prepare a ceramic by heating a slurry of a powder of an inorganic substance in water to a very high temperature under pressure?

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

What is the name of the industrial process in which sulfur (S₈)is used to create linkages between individual polymer chains in rubber?

The polymer formed from the monomer CH₂=CH-CN is