Question 1

Identify the most reactive element.

Accepted Answer

A)  N 
B)  H 
C)  C 
D)  O 
E)  F 
A)  N 
B)  H 
C)  C 
D)  O 
E)  F

Question 2

Identify baking powder.

Accepted Answer

A)  lithium bicarbonate 
B)  sodium bicarbonate and an acid 
C)  magnesium carbonate and a base 
D)  magnesium oxide 
E)  sodium carbonate 
A)  lithium bicarbonate 
B)  sodium bicarbonate and an acid 
C)  magnesium carbonate and a base 
D)  magnesium oxide 
E)  sodium carbonate

Question 3

Give the formula of the compound that is in quartz.

Accepted Answer

A)  SiO4 
B)  Si2O3 
C)  SiO3 
D)  Si2O4 
E)  SiO2 
A)  SiO4 
B)  Si2O3 
C)  SiO3 
D)  Si2O4 
E)  SiO2

Question 4

Which of the following statements is TRUE?

Accepted Answer

A)  Water and H2S have the same bond angles. 
B)  Sulfuric acid is not a pollutant. 
C)  Sulfur is a stronger oxidizing agent than oxygen. 
D)  Water is less stable than H2S. 
E)  Sulfuric acid is a strong oxidizing agent. 
A)  Water and H2S have the same bond angles. 
B)  Sulfuric acid is not a pollutant. 
C)  Sulfur is a stronger oxidizing agent than oxygen. 
D)  Water is less stable than H2S. 
E)  Sulfuric acid is a strong oxidizing agent.

Question 5

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

Accepted Answer

A)  Mg(AlO2)2(SiO2)2 
B)  Mg2(AlO2)2(SiO2)2 
C)  Mg2(AlO2)2(SiO2) 
D)  Mg2(AlO2)(SiO2)2 
E)  Mg(AlO2)(SiO2)2 
A)  Mg(AlO2)2(SiO2)2 
B)  Mg2(AlO2)2(SiO2)2 
C)  Mg2(AlO2)2(SiO2) 
D)  Mg2(AlO2)(SiO2)2 
E)  Mg(AlO2)(SiO2)2

Question 6

Determine the oxidation state of carbon in the carbonate ion,Na2CO3 .

Accepted Answer

A)  +2 
B)  +4 
C)  +3 
D)  -6 
E)  +8 
A)  +2 
B)  +4 
C)  +3 
D)  -6 
E)  +8

Question 7

Determine the oxidation state of sulfur in S2O32-.

Accepted Answer

A)  +3 
B)  +6 
C)  +2 
D)  +4 
E)  0 
A)  +3 
B)  +6 
C)  +2 
D)  +4 
E)  0

Question 8

Which of the following statements is TRUE?

Accepted Answer

A)  Boron is a large component of Earth's crust. 
B)  Boron is usually found in its elemental state in the Earth's crust. 
C)  Due to boron's small size and low electronegativity, it behaves as a semimetal instead of a metal. 
D)  Boron atoms don't typically bond to one another due to its small atomic radius. 
E)  There are at least 5 allotropes of elemental boron. 
A)  Boron is a large component of Earth's crust. 
B)  Boron is usually found in its elemental state in the Earth's crust. 
C)  Due to boron's small size and low electronegativity, it behaves as a semimetal instead of a metal. 
D)  Boron atoms don't typically bond to one another due to its small atomic radius. 
E)  There are at least 5 allotropes of elemental boron.

Question 9

Match between columns
                        Premises: orthosilicate
phyllosilicate
amphibole
pyrosilicate
pyroxene

Accepted Answer

The Answer of SiS1U1B12S1U1B0OS1U1B15S1U1B0S1U1P12-S1S1P0 and SiOS1U1B13S1U1B0S1U1P12-S1S1P0 and SiS1U1B14S1U1B0OS1U1B111S1U1B0S1U1P16-S1S1P0 and SiOS1U1B14S1U1B0S1U1P14-S1S1P0 is...

Question 10

Determine the oxidation state of carbon in the carbon monoxide,CO.

Accepted Answer

A)  +2 
B)  +4 
C)  +3 
D)  +6 
E)  +8 
A)  +2 
B)  +4 
C)  +3 
D)  +6 
E)  +8

Question 11

Refer to the table below.Predict the silicate structure for CaZn(SiO4). Table 23.2 Types of Silicate Structures

Accepted Answer

A)  pyrosilicate 
B)  amphibole 
C)  orthosilicate 
D)  phyllosilicate 
E)  pyroxene 
A)  pyrosilicate 
B)  amphibole 
C)  orthosilicate 
D)  phyllosilicate 
E)  pyroxene

Question 12

Refer to the table below.Predict the silicate structure for NaAl(SiO3)2. Table 23.2 Types of Silicate Structures

Accepted Answer

A)  phyllosilicate 
B)  orthosilicate 
C)  amphibole 
D)  pyroxene 
E)  pyrosilicate 
A)  phyllosilicate 
B)  orthosilicate 
C)  amphibole 
D)  pyroxene 
E)  pyrosilicate

Question 13

What is the major detraction from using bituminous coal as an energy source?

Accepted Answer

A)  It has a very low carbon content. 
B)  It contains a high amount of sulfur, which when burned contributes to acid rain. 
C)  It has an extremely high surface area which makes it difficult to burn. 
D)  Bituminous coal is noncrystalline, which gives it a low energy/gram ratio. 
E)  There are no detractions from using bituminous coal. 
A)  It has a very low carbon content. 
B)  It contains a high amount of sulfur, which when burned contributes to acid rain. 
C)  It has an extremely high surface area which makes it difficult to burn. 
D)  Bituminous coal is noncrystalline, which gives it a low energy/gram ratio. 
E)  There are no detractions from using bituminous coal.

Question 14

Determine the oxidation state of nitrogen in KNO3 .

Accepted Answer

A)  +1 
B)  +6 
C)  -2 
D)  +4 
E)  +5 
A)  +1 
B)  +6 
C)  -2 
D)  +4 
E)  +5

Question 15

Which of the following statements is TRUE?

Accepted Answer

A)  Boron oxide, when added to silicon oxide glass, forms a more heat stable glass called Pyrex. 
B)  Boron most commonly forms compounds that fulfill the octet rule. 
C)  Boron forms fairly weak bonds with oxygen, due to their large electronegativity difference. 
D)  Boron trichloride is an example of a strong Lewis base. 
E)  None of the above is true. 
A)  Boron oxide, when added to silicon oxide glass, forms a more heat stable glass called Pyrex. 
B)  Boron most commonly forms compounds that fulfill the octet rule. 
C)  Boron forms fairly weak bonds with oxygen, due to their large electronegativity difference. 
D)  Boron trichloride is an example of a strong Lewis base. 
E)  None of the above is true.

Question 16

Which of the following statements is TRUE?

Accepted Answer

A)  Ammonium nitrate is a good explosive. 
B)  Sodium nitrite is used as a meat preservative. 
C)  NO2 reacts with water to form nitric acid. 
D)  Hydrazine is a good reducing agent. 
E)  All of the above are true. 
A)  Ammonium nitrate is a good explosive. 
B)  Sodium nitrite is used as a meat preservative. 
C)  NO2 reacts with water to form nitric acid. 
D)  Hydrazine is a good reducing agent. 
E)  All of the above are true.

Question 17

Write the balanced equation that represents the formation of hydrofluoric acid from the reaction of calcium fluoride with sulfuric acid.

Accepted Answer

A)  CaF2 + H2S → CaS + 2 HF 
B)  CF4 + 2 H2S → 4 HF + CS2 
C)  CF4 + 2 H2SO4 → 4 HF + CS2 + CO2 
D)  CaF2 + H2SO4 → 2 HF + CaSO4 
E)  CaF2 + H2SO3 → CaSO3 + 2 HF 
A)  CaF2 + H2S → CaS + 2 HF 
B)  CF4 + 2 H2S → 4 HF + CS2 
C)  CF4 + 2 H2SO4 → 4 HF + CS2 + CO2 
D)  CaF2 + H2SO4 → 2 HF + CaSO4 
E)  CaF2 + H2SO3 → CaSO3 + 2 HF

Question 18

Refer to the table below.Use charge balance to determine the value of x in the pyroxene Srx(SiO3)2. Table 23.2 Types of Silicate Structures

Accepted Answer

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

Question 19

Identify the compound that smells like a rotten egg.

Accepted Answer

A)  SO  
B)  H2SO2 
C)  H2SO4 
D)  S4 
E)  H2S 
A)  SO  
B)  H2SO2 
C)  H2SO4 
D)  S4 
E)  H2S

Question 20

Describe the Frasch process for obtaining sulfur.

Accepted Answer

Since sulfur deposits are typically foun

Exam 23: Chemistry of the Nonmetals

Identify the most reactive element.

Identify baking powder.

Give the formula of the compound that is in quartz.

Which of the following statements is TRUE?

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

Determine the oxidation state of carbon in the carbonate ion,Na2CO3 .

Determine the oxidation state of sulfur in S2O32-.

Which of the following statements is TRUE?

Determine the oxidation state of carbon in the carbon monoxide,CO.

Refer to the table below.Predict the silicate structure for CaZn(SiO4). Table 23.2 Types of Silicate Structures

Refer to the table below.Predict the silicate structure for NaAl(SiO3)2. Table 23.2 Types of Silicate Structures

What is the major detraction from using bituminous coal as an energy source?

Determine the oxidation state of nitrogen in KNO3 .

Which of the following statements is TRUE?

Which of the following statements is TRUE?

Write the balanced equation that represents the formation of hydrofluoric acid from the reaction of calcium fluoride with sulfuric acid.

Refer to the table below.Use charge balance to determine the value of x in the pyroxene Srx(SiO3)2. Table 23.2 Types of Silicate Structures

Identify the compound that smells like a rotten egg.

Describe the Frasch process for obtaining sulfur.

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 carbon in the carbonate ion,Na₂CO₃.

Determine the oxidation state of sulfur in S₂O₃^2-.

Refer to the table below.Predict the silicate structure for CaZn(SiO₄). Table 23.2 Types of Silicate Structures

Refer to the table below.Predict the silicate structure for NaAl(SiO₃)₂. Table 23.2 Types of Silicate Structures

Determine the oxidation state of nitrogen in KNO₃.

Refer to the table below.Use charge balance to determine the value of x in the pyroxene Sr_x(SiO₃)₂. Table 23.2 Types of Silicate Structures