Exam 12: Modern Materials

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Which one of the following is an addition polymer with the same structure as polyethylene except that one hydrogen on every other carbon is replaced by a benzene ring? Polyvinyl chloride polypropylene polystyrene polyurethane nylon 6,6

(Multiple Choice)

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Question 41

In initial steps of the sol- gel process, a reactive metal is treated with an alcohol to form a metal alkoxide. The metal alkoxide is then combined with water to form the metal hydroxide. The metal hydroxide is not formed directly by reaction of the metal with water because .

(Multiple Choice)

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Question 42

Natural rubber is too soft and chemically reactive for practical applications. Vulcanization of natural rubber entails _ .

(Multiple Choice)

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Question 43

Silicon technology is based on the fact that silicon oxide is a chemically stable conductor.

(True/False)

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Question 44

Vulcanization involves heating rubber with sulfur dioxide to produce a thermosetting polymer.

(True/False)

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Question 45

Which type of liquid crystal is colored and changes color with temperature?

(Multiple Choice)

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Question 46

As a polymer becomes more crystalline, _.

(Multiple Choice)

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Question 47

Showing 41 - 47 of 47

Which one of the following is an addition polymer with the same structure as polyethylene except that one hydrogen on every other carbon is replaced by a benzene ring? Polyvinyl chloride polypropylene polystyrene polyurethane nylon 6,6

In initial steps of the sol- gel process, a reactive metal is treated with an alcohol to form a metal alkoxide. The metal alkoxide is then combined with water to form the metal hydroxide. The metal hydroxide is not formed directly by reaction of the metal with water because .

Natural rubber is too soft and chemically reactive for practical applications. Vulcanization of natural rubber entails _ .

Silicon technology is based on the fact that silicon oxide is a chemically stable conductor.

Vulcanization involves heating rubber with sulfur dioxide to produce a thermosetting polymer.

Which type of liquid crystal is colored and changes color with temperature?

As a polymer becomes more crystalline, _.

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

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