Question 1

From what do silicates derive their strength?

Accepted Answer

A) Their covalently bonded network structures. 
B) Strong intermolecular forces. 
C) Their extensive pi-delocalized systems. 
D) From two-dimensional covalent bonding. 
E) Nothing,silicates are not generally considered strong. 
A) Their covalently bonded network structures. 
B) Strong intermolecular forces. 
C) Their extensive pi-delocalized systems. 
D) From two-dimensional covalent bonding. 
E) Nothing,silicates are not generally considered strong.

Question 2

Mercury,one of the first materials in which superconductivity was observed,does so at what temperature?

Accepted Answer

A) 4K  
B) 14K  
C) 40K  
D) 23K  
E) 273K  
A) 4K  
B) 14K  
C) 40K  
D) 23K  
E) 273K

Question 3

Concrete,steel,and cement are examples of what type of materials?

Accepted Answer

A) Malleable. 
B) Alloys. 
C) Electrically conductive. 
D) Deformable. 
E) Structural. 
A) Malleable. 
B) Alloys. 
C) Electrically conductive. 
D) Deformable. 
E) Structural.

Question 4

The doping of a solid is the spreading of small amounts of impurities through it.

Accepted Answer

A) True 
 B)False

Question 5

How are atoms in a substitutional alloy arranged?

Accepted Answer

A) In micro-clusters within the greater solid. 
B) In precise,geometric arrays. 
C) Those of one element replace those of the major element. 
D) Those of one element fit into the interstices formed by the major element. 
E) In planes,known as slips. 
A) In micro-clusters within the greater solid. 
B) In precise,geometric arrays. 
C) Those of one element replace those of the major element. 
D) Those of one element fit into the interstices formed by the major element. 
E) In planes,known as slips.

Question 6

Bone is a composite composed of collagen and ______________________ (phosphate salts /carbonate salts / sulfate salts).

Accepted Answer

The answer of Bone is a composite composed of collagen...

Question 7

What is the formula of buckminsterfullerene?

Accepted Answer

A) C1-10 
B) C6 
C) C10 
D) C60 
E) Millions of carbon atoms. 
A) C1-10 
B) C6 
C) C10 
D) C60 
E) Millions of carbon atoms.

Question 8

What contaminant causes the red "terra cotta" color in most ceramics?

Accepted Answer

The answer of What contaminant causes the red "terra cotta"...

Question 9

What is a quantum dot?

Accepted Answer

A) Three-dimensional structures of conducting materials containing 10 - 100,000 atoms. 
B) Three-dimensional structures of semi-conducting materials containing 10 - 100,000 atoms. 
C) Three-dimensional structures of semi-conducting materials containing 1 - 10,000 atoms. 
D) Three-dimensional structures of conducting materials containing 1 - 10,000 atoms 
E) Three-dimensional structures of non-conducting materials containing 1 - 10,000 atoms. 
A) Three-dimensional structures of conducting materials containing 10 - 100,000 atoms. 
B) Three-dimensional structures of semi-conducting materials containing 10 - 100,000 atoms. 
C) Three-dimensional structures of semi-conducting materials containing 1 - 10,000 atoms. 
D) Three-dimensional structures of conducting materials containing 1 - 10,000 atoms 
E) Three-dimensional structures of non-conducting materials containing 1 - 10,000 atoms.

Question 10

How does a p-n junction allow electric current to flow?

Accepted Answer

A) With lower resistance.  
B) In one direction only.  
C) With higher resistance.  
D) Directly over the band gap.  
E) It closes the band gap.  
A) With lower resistance.  
B) In one direction only.  
C) With higher resistance.  
D) Directly over the band gap.  
E) It closes the band gap.

Question 11

What does "sintering" mean?

Accepted Answer

A) Mixing finely divided metal powders and pressing in a mold. 
B) Mixing molten metals and pressing in a mold. 
C) Mixing finely divided metal powders in a stream of oxygen. 
D) Mixing molten metals in a stream of oxygen. 
E) Adding one metal on top of another metal. 
A) Mixing finely divided metal powders and pressing in a mold. 
B) Mixing molten metals and pressing in a mold. 
C) Mixing finely divided metal powders in a stream of oxygen. 
D) Mixing molten metals in a stream of oxygen. 
E) Adding one metal on top of another metal.

Question 12

How is an alloy defined?

Accepted Answer

A) As a fixed ratio of metals in a material. 
B) As a metal and non-metal in an unfixed ratio. 
C) As two or more elements combined in no fixed ratio,at least one of which is a metal. 
D) As a pure mixture of two elements. 
E) As two or more elements in a crystalline structure. 
A) As a fixed ratio of metals in a material. 
B) As a metal and non-metal in an unfixed ratio. 
C) As two or more elements combined in no fixed ratio,at least one of which is a metal. 
D) As a pure mixture of two elements. 
E) As two or more elements in a crystalline structure.

Question 13

Portland cement is made from what materials?

Accepted Answer

A) Oxides.  
B) Sand and clay.  
C) Crushed limestone  
D) Only B and C,above.  
E) A,B,and C,above.  
A) Oxides.  
B) Sand and clay.  
C) Crushed limestone  
D) Only B and C,above.  
E) A,B,and C,above.

Question 14

Brass is an example of what kind of metal?

Accepted Answer

A) A pure elemental metal. 
B) An ionic metal. 
C) An alloy. 
D) An amalgam. 
E) None of the above. 
A) A pure elemental metal. 
B) An ionic metal. 
C) An alloy. 
D) An amalgam. 
E) None of the above.

Question 15

How many types of monomers must be in a material as a minimum for it to be considered a co-polymer?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 16

Ferrofluids contain suspensions of coarsely divided elemental iron.

Accepted Answer

A) True 
 B)False

Question 17

How is conduction in metals and graphite best described?

Accepted Answer

A) Electronic conduction. 
B) Ionic conduction. 
C) p-doped conduction. 
D) n-doped conduction. 
A) Electronic conduction. 
B) Ionic conduction. 
C) p-doped conduction. 
D) n-doped conduction.

Question 18

What best describes alnico?

Accepted Answer

A) A metal alloy. 
B) A ferromagnetic alloy. 
C) A non-metallic alloy. 
D) An anti-ferromagnetic alloy. 
E) An iron-containing alloy. 
A) A metal alloy. 
B) A ferromagnetic alloy. 
C) A non-metallic alloy. 
D) An anti-ferromagnetic alloy. 
E) An iron-containing alloy.

Question 19

What is the diameter range of a nano-tube?

Accepted Answer

A) A few angstroms. 
B) A few nanometers. 
C) A few microns. 
D) No more than 5 angstroms. 
E) No more than 5 microns. 
A) A few angstroms. 
B) A few nanometers. 
C) A few microns. 
D) No more than 5 angstroms. 
E) No more than 5 microns.

Question 20

How is pig iron produced?

Accepted Answer

A) In a charcoal fire. 
B) Through multiple heatings. 
C) In a blast furnace. 
D) Through molten mixing with other metals. 
E) It is naturally occuring. 
A) In a charcoal fire. 
B) Through multiple heatings. 
C) In a blast furnace. 
D) Through molten mixing with other metals. 
E) It is naturally occuring.

From what do silicates derive their strength?

Mercury,one of the first materials in which superconductivity was observed,does so at what temperature?

Concrete,steel,and cement are examples of what type of materials?

The doping of a solid is the spreading of small amounts of impurities through it.

How are atoms in a substitutional alloy arranged?

Bone is a composite composed of collagen and ______________________ (phosphate salts /carbonate salts / sulfate salts).

What is the formula of buckminsterfullerene?

What contaminant causes the red "terra cotta" color in most ceramics?

What is a quantum dot?

How does a p-n junction allow electric current to flow?

What does "sintering" mean?

How is an alloy defined?

Portland cement is made from what materials?

Brass is an example of what kind of metal?

How many types of monomers must be in a material as a minimum for it to be considered a co-polymer?

Ferrofluids contain suspensions of coarsely divided elemental iron.

How is conduction in metals and graphite best described?

What best describes alnico?

What is the diameter range of a nano-tube?

How is pig iron produced?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

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Exam 7: Inorganic Materials

From what do silicates derive their strength?

Mercury,one of the first materials in which superconductivity was observed,does so at what temperature?

Concrete,steel,and cement are examples of what type of materials?

The doping of a solid is the spreading of small amounts of impurities through it.

How are atoms in a substitutional alloy arranged?

Bone is a composite composed of collagen and ______________________ (phosphate salts /carbonate salts / sulfate salts).

What is the formula of buckminsterfullerene?

What contaminant causes the red "terra cotta" color in most ceramics?

What is a quantum dot?

How does a p-n junction allow electric current to flow?

What does "sintering" mean?

How is an alloy defined?

Portland cement is made from what materials?

Brass is an example of what kind of metal?

How many types of monomers must be in a material as a minimum for it to be considered a co-polymer?

Ferrofluids contain suspensions of coarsely divided elemental iron.

How is conduction in metals and graphite best described?

What best describes alnico?

What is the diameter range of a nano-tube?

How is pig iron produced?

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters