Question 1

arises when the unpaired electrons of the atoms or ions in a solid are influenced by the orientations of the electrons of their neighbors.

Accepted Answer

The answer of arises when the unpaired electrons of the...

Question 2

Melting an ore and causing the melt to separate into two or more layers is called

Accepted Answer

A)  slag. 
B)  roasting. 
C)  alloying. 
D)  calcining. 
E)  smelting. 
A)  slag. 
B)  roasting. 
C)  alloying. 
D)  calcining. 
E)  smelting.

Question 3

What is the coefficient of Cl2 when the following equation is completed and balanced?

Accepted Answer

A)  1 
B)  4 
C)  3 
D)  5 
E)  6 
A)  1 
B)  4 
C)  3 
D)  5 
E)  6

Question 4

The oxidation state of copper in Cu2CO3(OH)2 is _ .

Accepted Answer

A)  0 
B)  - 2 
C)  +1 
D)  +2 
E)  +4 
A)  0 
B)  - 2 
C)  +1 
D)  +2 
E)  +4

Question 5

Shape memory alloys .

Accepted Answer

A)  in their lower temperature phase have a flexible arrangement between atoms 
B)  in their higher temperature phase have strong and fixed bonds between atoms 
C)  change their structure as the temperature changes 
D)  are more pliable when cold than when warm 
E)  all of the above 
A)  in their lower temperature phase have a flexible arrangement between atoms 
B)  in their higher temperature phase have strong and fixed bonds between atoms 
C)  change their structure as the temperature changes 
D)  are more pliable when cold than when warm 
E)  all of the above

Question 6

A deposit that contains a metal in economically exploitable quantities is called a(n) _.

Accepted Answer

A)  vein 
B)  metal 
C)  ore 
D)  mineral 
E)  comstock 
A)  vein 
B)  metal 
C)  ore 
D)  mineral 
E)  comstock

Question 7

A substance with unpaired electrons will be

Accepted Answer

A)  slightly attracted to a magnet. 
B)  slightly repelled by a magnet. 
C)  brightly colored. 
D)  permanently magnetic. 
E)  nonmetallic. 
A)  slightly attracted to a magnet. 
B)  slightly repelled by a magnet. 
C)  brightly colored. 
D)  permanently magnetic. 
E)  nonmetallic.

Question 8

Intermetallic compounds are examples of

Accepted Answer

A)  homogeneous alloys. 
B)  solution alloys. 
C)  ionic compounds. 
D)  heterogeneous alloys. 
E)  interstitial alloys. 
A)  homogeneous alloys. 
B)  solution alloys. 
C)  ionic compounds. 
D)  heterogeneous alloys. 
E)  interstitial alloys.

Question 9

A slag is formed when a basic metal oxide reacts with molten _ at high temperatures.

Accepted Answer

A)  CaO 
B)  Fe2O3  
C)  CaSiO3  
D)  CO 
E)  SiO2 
A)  CaO 
B)  Fe2O3  
C)  CaSiO3  
D)  CO 
E)  SiO2

Question 10

The purpose of the limestone used in a blast furnace is to form slag.

Accepted Answer

A) True 
 B)False

Question 11

Of the following, which is a bulk property?

Accepted Answer

A)  melting point 
B)  atomic number 
C)  ionization energy 
D)  atomic radius 
E)  electron configuration 
A)  melting point 
B)  atomic number 
C)  ionization energy 
D)  atomic radius 
E)  electron configuration

Question 12

What is the coefficient of Fe2+ when the following equation is completed and balanced?

Accepted Answer

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

Question 13

The Hall process is

Accepted Answer

A)  the pyrometallurgic process used to produce aluminum. 
B)  the pyrometallurgic process used to produce iron. 
C)  the electrolytic process used to produce iron. 
D)  the hydrometallurgic process to produce aluminum. 
E)  the electrolytic process used to produce aluminum. 
A)  the pyrometallurgic process used to produce aluminum. 
B)  the pyrometallurgic process used to produce iron. 
C)  the electrolytic process used to produce iron. 
D)  the hydrometallurgic process to produce aluminum. 
E)  the electrolytic process used to produce aluminum.

Question 14

Write the two reactions that are used to control the temperature in a blast furnace and indicate which provides heat and which cools.

Accepted Answer

The answer of Write the two reactions that are used...

Question 15

The hydrated manganese(II) ion is

Accepted Answer

A)  blue. 
B)  violet. 
C)  orange. 
D)  colorless. 
E)  yellow. 
A)  blue. 
B)  violet. 
C)  orange. 
D)  colorless. 
E)  yellow.

Question 16

Which of the following equations represents the roasting of an ore?

Accepted Answer

A)  All of these represent roasting processes. 
B)  PbO (s) + CO (g)  Pb (l) + CO2 (g) 
C)  HgS (s) + O2 (g)  Hg (g) + SO2 (g) 
D)  2ZnS (s) + 3O2 (g)  2ZnO (s) + 2SO2 (g) 
E)  2MoS2 (s) + 7O2 (g)  2MoO3 (s) + 4SO2 (g) 
A)  All of these represent roasting processes. 
B)  PbO (s) + CO (g)  Pb (l) + CO2 (g) 
C)  HgS (s) + O2 (g)  Hg (g) + SO2 (g) 
D)  2ZnS (s) + 3O2 (g)  2ZnO (s) + 2SO2 (g) 
E)  2MoS2 (s) + 7O2 (g)  2MoO3 (s) + 4SO2 (g)

Question 17

In the second and third transition series, the maximum oxidation state is .

Accepted Answer

A)  +2 
B)  +4 
C)  +5 
D)  +7 
E)  +8 
A)  +2 
B)  +4 
C)  +5 
D)  +7 
E)  +8

Question 18

The purpose of a converter in steel production is

Accepted Answer

A)  to remove impurity elements by oxidation 
B)  to allow the addition of nitrogen for increased strength 
C)  to reduce the iron in the ore to elemental 
D)  to allow the formation of phosphides within the metal for added corrosion resistance 
E)  to allow slow solidification of the molten metal so it will purify as it crystallizes 
A)  to remove impurity elements by oxidation 
B)  to allow the addition of nitrogen for increased strength 
C)  to reduce the iron in the ore to elemental 
D)  to allow the formation of phosphides within the metal for added corrosion resistance 
E)  to allow slow solidification of the molten metal so it will purify as it crystallizes

Question 19

Alloys generally differ from compounds in that

Accepted Answer

A)  the former always contain some iron. 
B)  the atomic ratios of the constituent elements in the former are not fixed and may vary over a wide range. 
C)  the former never contain a transition element. 
D)  the former always have semiconductor properties. 
E)  the former always contain some carbon. 
A)  the former always contain some iron. 
B)  the atomic ratios of the constituent elements in the former are not fixed and may vary over a wide range. 
C)  the former never contain a transition element. 
D)  the former always have semiconductor properties. 
E)  the former always contain some carbon.

Question 20

What two oxidation states are more frequently observed in the first transition series than in the third?

Accepted Answer

A)  +5 and +6 
B)  +3 and +5 
C)  +3 and +7 
D)  +2 and +7 
E)  +2 and +3 
A)  +5 and +6 
B)  +3 and +5 
C)  +3 and +7 
D)  +2 and +7 
E)  +2 and +3

Exam 23: Metals and Metallurgy

arises when the unpaired electrons of the atoms or ions in a solid are influenced by the orientations of the electrons of their neighbors.

Melting an ore and causing the melt to separate into two or more layers is called

What is the coefficient of Cl2 when the following equation is completed and balanced?

The oxidation state of copper in Cu2CO3(OH)2 is _ .

Shape memory alloys .

A deposit that contains a metal in economically exploitable quantities is called a(n) _.

A substance with unpaired electrons will be

Intermetallic compounds are examples of

A slag is formed when a basic metal oxide reacts with molten _ at high temperatures.

The purpose of the limestone used in a blast furnace is to form slag.

Of the following, which is a bulk property?

What is the coefficient of Fe2+ when the following equation is completed and balanced?

The Hall process is

Write the two reactions that are used to control the temperature in a blast furnace and indicate which provides heat and which cools.

The hydrated manganese(II) ion is

Which of the following equations represents the roasting of an ore?

In the second and third transition series, the maximum oxidation state is .

The purpose of a converter in steel production is

Alloys generally differ from compounds in that

What two oxidation states are more frequently observed in the first transition series than in the third?

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

Modern Materials

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

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters

What is the coefficient of Cl₂when the following equation is completed and balanced?

The oxidation state of copper in Cu₂CO₃(OH)₂is _ .

What is the coefficient of Fe²⁺when the following equation is completed and balanced?