Question 1

Which of the following are major components of Earth's crust?

Accepted Answer

A)  oxygen and silicon 
B)  calcium and silicon 
C)  oxygen and hydrogen 
D)  oxygen, magnesium and carbon 
E)  oxygen, hydrogen and carbon 
A)  oxygen and silicon 
B)  calcium and silicon 
C)  oxygen and hydrogen 
D)  oxygen, magnesium and carbon 
E)  oxygen, hydrogen and carbon A

Question 2

Identify the form of coal that has a high carbon content.

Accepted Answer

A)  nanotube 
B)  graphite 
C)  anthracite 
D)  fullerene 
E)  gasoline 
A)  nanotube 
B)  graphite 
C)  anthracite 
D)  fullerene 
E)  gasoline C

Question 3

Identify a nonmetal.

Accepted Answer

A)  P 
B)  Ca 
C)  Pd 
D)  Ni 
E)  Ge 
A)  P 
B)  Ca 
C)  Pd 
D)  Ni 
E)  Ge A

Question 4

Which of the following statements is TRUE?

Accepted Answer

A)  Ionic carbides form between carbon and another high electronegativity element. 
B)  Carbides are soft materials with low melting points. 
C)  Metallic carbides are more malleable than the pure metal. 
D)  Covalent carbides are formed between carbon and a low electronegativity nonmetal. 
E)  None of the above is true. 
A)  Ionic carbides form between carbon and another high electronegativity element. 
B)  Carbides are soft materials with low melting points. 
C)  Metallic carbides are more malleable than the pure metal. 
D)  Covalent carbides are formed between carbon and a low electronegativity nonmetal. 
E)  None of the above is true.

Question 5

Give the bond angle of a boron triiodide.

Accepted Answer

A)  90° 
B)  45° 
C)  120° 
D)  107° 
E)  103° 
A)  90° 
B)  45° 
C)  120° 
D)  107° 
E)  103°

Question 6

Determine the oxidation state of nitrogen in KN3.

Accepted Answer

A)  +1 
B)  +3 
C)  -2 
D)  -   
E)  -3 
A)  +1 
B)  +3 
C)  -2 
D)  -   
E)  -3

Question 7

Which of the following statements is TRUE?

Accepted Answer

A)  All silicates are composed of SiO4 tetrahedra that bond together through an oxygen to form single chains. 
B)  The fibrous nature of asbestos comes from its silicate sheet structure. 
C)  In some silicates, ionic bonding between a metal ion and an SixOyz- ion is what holds the structure together. 
D)  The flakiness of mica comes from its single silicate chain structure. 
E)  None of the above is true. 
A)  All silicates are composed of SiO4 tetrahedra that bond together through an oxygen to form single chains. 
B)  The fibrous nature of asbestos comes from its silicate sheet structure. 
C)  In some silicates, ionic bonding between a metal ion and an SixOyz- ion is what holds the structure together. 
D)  The flakiness of mica comes from its single silicate chain structure. 
E)  None of the above is true.

Question 8

Give the shape of a boron tribromide.

Accepted Answer

A)  trigonal planar 
B)  tetrahedral 
C)  T-shaped 
D)  trigonal bipyramidal 
E)  octahedral 
A)  trigonal planar 
B)  tetrahedral 
C)  T-shaped 
D)  trigonal bipyramidal 
E)  octahedral

Question 9

Write the balanced reaction that shows the formation of ICl3 from its elements.

Accepted Answer

I₂(s)+ 3 Cl

Question 10

Determine the formula for an aluminosilicate where one fourth of the silicons are replaced by an aluminum atom.The charge is balanced by sodium ions.

Accepted Answer

A)  Na2(AlO2)2(SiO2) 
B)  Na2(AlO2)2(SiO2)3 
C)  Na(AlO2)2(SiO2) 
D)  Na2(AlO2)2(SiO2)2 
E)  Na(AlO2)(SiO2)3 
A)  Na2(AlO2)2(SiO2) 
B)  Na2(AlO2)2(SiO2)3 
C)  Na(AlO2)2(SiO2) 
D)  Na2(AlO2)2(SiO2)2 
E)  Na(AlO2)(SiO2)3

Question 11

Refer to the table below.Use charge balance to determine the value of x in the pyrosilicate BaxSi2O7. Table 23.2 Types of Silicate Structures

Accepted Answer

A)  1 
B)  3 
C)  6 
D)  4 
E)  2 
A)  1 
B)  3 
C)  6 
D)  4 
E)  2

Question 12

Refer to the table below.Use charge balance to determine the value of x in the orthosilicate BaxSiO4. Table 23.2 Types of Silicate Structures

Accepted Answer

A)  3 
B)  1 
C)  2 
D)  4 
E)  6 
A)  3 
B)  1 
C)  2 
D)  4 
E)  6

Question 13

Identify an example of a nitrite.

Accepted Answer

A)  KNO2 
B)  NO 
C)  N2O 
D)  NaNO3 
E)  NO4 
A)  KNO2 
B)  NO 
C)  N2O 
D)  NaNO3 
E)  NO4

Question 14

Identify a superoxide.

Accepted Answer

A)  BaO2 
B)  MgO 
C)  Na2O2 
D)  Li2O 
E)  RbO2 
A)  BaO2 
B)  MgO 
C)  Na2O2 
D)  Li2O 
E)  RbO2

Question 15

Identify a property of fluorine.

Accepted Answer

A)  reacts with glass 
B)  has weakest X-X bond energy 
C)  oxidizes other substances quickly 
D)  reacts with xenon 
E)  all of the above 
A)  reacts with glass 
B)  has weakest X-X bond energy 
C)  oxidizes other substances quickly 
D)  reacts with xenon 
E)  all of the above

Question 16

Refer to the table below.Use charge balance to determine the value of x in the amphibole Ca2(OH)2Znx(Si4O11)2. Table 23.2 Types of Silicate Structures

Accepted Answer

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

Question 17

List the name of powdered form of carbon,which is a component of soot.

Accepted Answer

A)  diamond 
B)  graphite 
C)  fullerenes 
D)  buckyballs 
E)  carbon black 
A)  diamond 
B)  graphite 
C)  fullerenes 
D)  buckyballs 
E)  carbon black

Question 18

Identify an example of a nitrate.

Accepted Answer

A)  LiN3 
B)  NaNO2 
C)  NaNO3 
D)  NO2 
E)  NO 
A)  LiN3 
B)  NaNO2 
C)  NaNO3 
D)  NO2 
E)  NO

Question 19

Identify the oxygen compound that kills bacteria and is used as a disinfectant.

Accepted Answer

A)  O3 
B)  O2 
C)  SO2 
D)  SO3 
E)  NO2 
A)  O3 
B)  O2 
C)  SO2 
D)  SO3 
E)  NO2

Question 20

Which of the following statements is TRUE?

Accepted Answer

A)  Silicon atoms are too large to form pi bonds between them. 
B)  Silicates are covalent atomic solids that contain silicon and oxygen. 
C)  Silicon is the most abundant element in the Earth's crust. 
D)  Silicon is one of the strongest oxidizing agents. 
E)  All of the above are true. 
A)  Silicon atoms are too large to form pi bonds between them. 
B)  Silicates are covalent atomic solids that contain silicon and oxygen. 
C)  Silicon is the most abundant element in the Earth's crust. 
D)  Silicon is one of the strongest oxidizing agents. 
E)  All of the above are true.

Exam 23: Chemistry of the Nonmetals

Which of the following are major components of Earth's crust?

Identify the form of coal that has a high carbon content.

Identify a nonmetal.

Which of the following statements is TRUE?

Give the bond angle of a boron triiodide.

Determine the oxidation state of nitrogen in KN3.

Which of the following statements is TRUE?

Give the shape of a boron tribromide.

Write the balanced reaction that shows the formation of ICl3 from its elements.

Determine the formula for an aluminosilicate where one fourth of the silicons are replaced by an aluminum atom.The charge is balanced by sodium ions.

Refer to the table below.Use charge balance to determine the value of x in the pyrosilicate BaxSi2O7. Table 23.2 Types of Silicate Structures

Refer to the table below.Use charge balance to determine the value of x in the orthosilicate BaxSiO4. Table 23.2 Types of Silicate Structures

Identify an example of a nitrite.

Identify a superoxide.

Identify a property of fluorine.

Refer to the table below.Use charge balance to determine the value of x in the amphibole Ca2(OH)2Znx(Si4O11)2. Table 23.2 Types of Silicate Structures

List the name of powdered form of carbon,which is a component of soot.

Identify an example of a nitrate.

Identify the oxygen compound that kills bacteria and is used as a disinfectant.

Which of the following statements is TRUE?

Matter, measurement, and Problem Solving

Atoms and Elements

Molecules,compounds,and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

Determine the oxidation state of nitrogen in KN₃.

Write the balanced reaction that shows the formation of ICl₃ from its elements.

Refer to the table below.Use charge balance to determine the value of x in the pyrosilicate Ba_xSi₂O₇. Table 23.2 Types of Silicate Structures

Refer to the table below.Use charge balance to determine the value of x in the orthosilicate Ba_xSiO₄. Table 23.2 Types of Silicate Structures

Refer to the table below.Use charge balance to determine the value of x in the amphibole Ca₂(OH)₂Zn_x(Si₄O₁₁)₂. Table 23.2 Types of Silicate Structures