Question 1

The debris accompanying a mineral is called

Accepted Answer

A)  slag. 
B)  gangue. 
C)  ore. 
D)  halite. 
E)  ash. 
A)  slag. 
B)  gangue. 
C)  ore. 
D)  halite. 
E)  ash.

Question 2

What is the source of most metals?

Accepted Answer

A)  Industry 
B)  Synthesis 
C)  Saturated 
D)  Ocean floor 
E)  Minerals 
A)  Industry 
B)  Synthesis 
C)  Saturated 
D)  Ocean floor 
E)  Minerals

Question 3

Calcium oxide is added to molten iron in the production of carbon steel in order to

Accepted Answer

A)  convert silicon and phosphorus oxides to slag which can be decanted from the molten steel. 
B)  serve as a scrubber to remove sulfur dioxide from the gases leaving the furnace. 
C)  remove any traces of acid which could weaken the steel. 
D)  add a small amount of oxygen to the steel to prevent corrosion and increase its strength. 
E)  create gangue. 
A)  convert silicon and phosphorus oxides to slag which can be decanted from the molten steel. 
B)  serve as a scrubber to remove sulfur dioxide from the gases leaving the furnace. 
C)  remove any traces of acid which could weaken the steel. 
D)  add a small amount of oxygen to the steel to prevent corrosion and increase its strength. 
E)  create gangue.

Question 4

What is the chemical formula for talc?

Accepted Answer

A)  NaNO3 
B)  Mg3(PO4)2 
C)  CaCO3  
D)  Mg3(Si4O10)(OH)2 
E)  Ca3(PO4)2 
A)  NaNO3 
B)  Mg3(PO4)2 
C)  CaCO3  
D)  Mg3(Si4O10)(OH)2 
E)  Ca3(PO4)2

Question 5

Aluminum and magnesium are light metals which are used in many structural applications. Although they are highly active metals (as their electrode potentials suggest), they can often be used without the use of paint or other applied finishes to protect them against corrosion. How is this possible?

Accepted Answer

Both Al and Mg have strong, adherent, re

Question 6

Which of these elements when doped into silicon would give an n-type semiconductor?

Accepted Answer

A)  C 
B)  Ga 
C)  P 
D)  Ge 
E)  B 
A)  C 
B)  Ga 
C)  P 
D)  Ge 
E)  B

Question 7

Potassium is produced industrially by the reactionNa(g) + KCl(l)   NaCl(l) + K(g)The reaction is carried out at 850°C, but the equilibrium constant (Kc) strongly favors the reactants. Explain how the conditions are manipulated to ensure a good yield of potassium despite the small value of Kc.

Accepted Answer

The gaseous potassium product

Question 8

The process that selectively extracts a metal from its ore, by dissolving it, is called

Accepted Answer

A)  roasting. 
B)  leaching. 
C)  smelting. 
D)  flotation. 
E)  hydration. 
A)  roasting. 
B)  leaching. 
C)  smelting. 
D)  flotation. 
E)  hydration.

Question 9

Which is an example of a basic oxide?

Accepted Answer

A)  SO3(g) 
B)  BaO(s) 
C)  Al2O3(s) 
D)  Fe2O3(s) 
E)  SiO2(s) 
A)  SO3(g) 
B)  BaO(s) 
C)  Al2O3(s) 
D)  Fe2O3(s) 
E)  SiO2(s)

Question 10

Cast iron as it is prepared in a blast furnace is a product of high purity.

Accepted Answer

A) True 
 B)False

Question 11

What is the name for the elements in Group 2A of the periodic table?

Accepted Answer

Alkaline e

Question 12

What are two raw materials used in the Solvay process?

Accepted Answer

A)  NaHCO3 and NaCl 
B)  CaCO3 and Na2CO3 
C)  NaCl and NaCO3  
D)  NH3 and NaCl 
E)  Na2CO3 and NH4Cl 
A)  NaHCO3 and NaCl 
B)  CaCO3 and Na2CO3 
C)  NaCl and NaCO3  
D)  NH3 and NaCl 
E)  Na2CO3 and NH4Cl

Question 13

A(n) ________ is a solid solution either of two or more metals, or of a metal or metals with one or more nonmetals.

Accepted Answer

The answer of A(n) ________ is a solid solution either...

Question 14

_____ consists of potassium nitrate, wood charcoal, and sulfur.

Accepted Answer

A)  Salt peter 
B)  Chile salt peter 
C)  Carborundum 
D)  Gunpowder 
E)  Anglesite 
A)  Salt peter 
B)  Chile salt peter 
C)  Carborundum 
D)  Gunpowder 
E)  Anglesite

Question 15

The process of converting metal sulfides to metal oxides is called

Accepted Answer

A)  roasting. 
B)  smelting. 
C)  flotation. 
D)  leaching. 
E)  sulfoxidation. 
A)  roasting. 
B)  smelting. 
C)  flotation. 
D)  leaching. 
E)  sulfoxidation.

Question 16

Which ion is not found in sea water in a concentration high enough to be an industrial source of the metal?

Accepted Answer

A)  Ca2+ 
B)  Mg2+ 
C)  Na+  
D)  K+ 
E)  Ag+ 
A)  Ca2+ 
B)  Mg2+ 
C)  Na+  
D)  K+ 
E)  Ag+

Question 17

The flotation process used in metallurgy involves

Accepted Answer

A)  the roasting of sulfides. 
B)  separation of gangue from ore. 
C)  electrolytic reduction. 
D)  chemical reduction of a metal. 
E)  zone refining. 
A)  the roasting of sulfides. 
B)  separation of gangue from ore. 
C)  electrolytic reduction. 
D)  chemical reduction of a metal. 
E)  zone refining.

Question 18

A metal crystal consisting of 1 × 1020 atoms has 0.5 × 1020 bonding orbitals and 0.5 × 1020 antibonding molecular orbitals.

Accepted Answer

A) True 
 B)False

Question 19

What is the name of the relationship that exists because of the similar properties of carbon to phosphorus and nitrogen to sulfur?

Accepted Answer

A)  A diagonal relationship 
B)  The periodic law 
C)  Amphoterism 
D)  An isoelectronic relationship 
E)  An allotropic relationship 
A)  A diagonal relationship 
B)  The periodic law 
C)  Amphoterism 
D)  An isoelectronic relationship 
E)  An allotropic relationship

Question 20

Pyrometallurgy uses ________ to separate a metal from its ore.

Accepted Answer

A)  solid phase chemical properties 
B)  electrical processes 
C)  thermal processes 
D)  aqueous chemical processes 
E)  explosives 
A)  solid phase chemical properties 
B)  electrical processes 
C)  thermal processes 
D)  aqueous chemical processes 
E)  explosives

Exam 24: Nonmetallic Elements and Their Compounds

The debris accompanying a mineral is called

What is the source of most metals?

Calcium oxide is added to molten iron in the production of carbon steel in order to

What is the chemical formula for talc?

Aluminum and magnesium are light metals which are used in many structural applications. Although they are highly active metals (as their electrode potentials suggest), they can often be used without the use of paint or other applied finishes to protect them against corrosion. How is this possible?

Which of these elements when doped into silicon would give an n-type semiconductor?

Potassium is produced industrially by the reactionNa(g) + KCl(l) NaCl(l) + K(g)The reaction is carried out at 850°C, but the equilibrium constant (Kc) strongly favors the reactants. Explain how the conditions are manipulated to ensure a good yield of potassium despite the small value of Kc.

The process that selectively extracts a metal from its ore, by dissolving it, is called

Which is an example of a basic oxide?

Cast iron as it is prepared in a blast furnace is a product of high purity.

What is the name for the elements in Group 2A of the periodic table?

What are two raw materials used in the Solvay process?

A(n) ________ is a solid solution either of two or more metals, or of a metal or metals with one or more nonmetals.

_____ consists of potassium nitrate, wood charcoal, and sulfur.

The process of converting metal sulfides to metal oxides is called

Which ion is not found in sea water in a concentration high enough to be an industrial source of the metal?

The flotation process used in metallurgy involves

A metal crystal consisting of 1 × 1020 atoms has 0.5 × 1020 bonding orbitals and 0.5 × 1020 antibonding molecular orbitals.

What is the name of the relationship that exists because of the similar properties of carbon to phosphorus and nitrogen to sulfur?

Pyrometallurgy uses ________ to separate a metal from its ore.

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

Modern Materials

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

Organic Chemistry

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Potassium is produced industrially by the reactionNa(g) + KCl(l) NaCl(l) + K(g)The reaction is carried out at 850°C, but the equilibrium constant (K_c) strongly favors the reactants. Explain how the conditions are manipulated to ensure a good yield of potassium despite the small value of K_c.

A metal crystal consisting of 1 × 10²⁰ atoms has 0.5 × 10²⁰ bonding orbitals and 0.5 × 10²⁰ antibonding molecular orbitals.