Question 1

Hydrogen can have oxidation states of .

Accepted Answer

A)  0 and +1 only 
B)  0 only 
C)  - 1 and +1 only 
D)  - 1, 0, and +1 
E)  +1 only 
A)  0 and +1 only 
B)  0 only 
C)  - 1 and +1 only 
D)  - 1, 0, and +1 
E)  +1 only

Question 2

The oxidation state of oxygen in OF2 is

Accepted Answer

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

Question 3

The least electronegative of the elements below is .

Accepted Answer

A)  I 
B)  H 
C)  Br 
D)  F 
E)  Cl 
A)  I 
B)  H 
C)  Br 
D)  F 
E)  Cl

Question 4

The oxidation numbers of nitrogen in the nitride ion, hydrazine, ammonium cation, and nitrate ion are _, , _,and ,respectively.

Accepted Answer

A)  +3, - 2, - 3, +5 
B)  - 3, +2, +1, +5 
C)  +3, - 2, +1, +3 
D)  - 3, - 2, - 3, +5 
E)  - 3, +2, - 3, +3 
A)  +3, - 2, - 3, +5 
B)  - 3, +2, +1, +5 
C)  +3, - 2, +1, +3 
D)  - 3, - 2, - 3, +5 
E)  - 3, +2, - 3, +3

Question 5

Why does calcium carbonate dissolve in water containing carbon dioxide?

Accepted Answer

because the dissolve

Question 6

Ozone is a pale blue poisonous gas with an irritating odor.

Accepted Answer

A) True 
 B)False

Question 7

Of the following, which is most likely to form interstitial carbides?

Accepted Answer

A)  boron and silicon 
B)  transition metals 
C)  active metals 
D)  alkali metals 
E)  alkaline earth metals 
A)  boron and silicon 
B)  transition metals 
C)  active metals 
D)  alkali metals 
E)  alkaline earth metals

Question 8

Of the non radioactive halogens which is the largest?

Accepted Answer

The answer of Of the non radioactive halogens which is...

Question 9

Which of the following equations correctly represents the reaction of B2H6 with oxygen?

Accepted Answer

A)  B2H6 (g) + 2O2 (g) → B2O2 (s) + 3H2  + O2 (g) 
B)  B2H6 (g) + O2 (g) → H2B2O2 (s) + 2H2 (g) 
C)  B2H6 (g) + O2 (g) → B2O2 (s) + 3H2 (g) 
D)  B2H6 (g) + 2O2 (g) → B2H2 (s) + 2H2O2 (aq) 
E)  B2H6 (g) + 3O2 (g) → B2O3 (s) + 3H2O (g) 
A)  B2H6 (g) + 2O2 (g) → B2O2 (s) + 3H2  + O2 (g) 
B)  B2H6 (g) + O2 (g) → H2B2O2 (s) + 2H2 (g) 
C)  B2H6 (g) + O2 (g) → B2O2 (s) + 3H2 (g) 
D)  B2H6 (g) + 2O2 (g) → B2H2 (s) + 2H2O2 (aq) 
E)  B2H6 (g) + 3O2 (g) → B2O3 (s) + 3H2O (g)

Question 10

In the reaction of phosphorus with chlorine to form a phosphorus chloride, whether PCl3 or PCl5 forms depends on

Accepted Answer

A)  whether the chlorine used is molecular or atomic. 
B)  the amount of moisture present. 
C)  whether the reaction is carried out in the gas phase or in solution. 
D)  which allotropic form of phosphorus is used. 
E)  the amount of chlorine present. 
A)  whether the chlorine used is molecular or atomic. 
B)  the amount of moisture present. 
C)  whether the reaction is carried out in the gas phase or in solution. 
D)  which allotropic form of phosphorus is used. 
E)  the amount of chlorine present.

Question 11

Boric oxide is .

Accepted Answer

A)  BO 
B)  B2O4  
C)  B2O 
D)  BO2  
E)  B2O3 
A)  BO 
B)  B2O4  
C)  B2O 
D)  BO2  
E)  B2O3

Question 12

What is the major commercial source of elemental sulfur?

Accepted Answer

A)  sulfate minerals 
B)  sulfide minerals 
C)  coal and petroleum 
D)  underground deposits of elemental sulfur 
E)  seawater 
A)  sulfate minerals 
B)  sulfide minerals 
C)  coal and petroleum 
D)  underground deposits of elemental sulfur 
E)  seawater

Question 13

The pentahydrated salt of sodium thiosulfate, Na2S2O3 · 5H2O, is used in photographic developing to convert _.

Accepted Answer

A)  insoluble AgBr to insoluble Ag2S2O3 
B)  insoluble AgBr to soluble Na3[Ag(S2O3)2] 
C)  insoluble AgBr to soluble Ag2S2O3 
D)  soluble AgBr to insoluble Ag2S2O3 
E)  insoluble AgBr to insoluble Na3[Ag(S2O3)2] 
A)  insoluble AgBr to insoluble Ag2S2O3 
B)  insoluble AgBr to soluble Na3[Ag(S2O3)2] 
C)  insoluble AgBr to soluble Ag2S2O3 
D)  soluble AgBr to insoluble Ag2S2O3 
E)  insoluble AgBr to insoluble Na3[Ag(S2O3)2]

Question 14

Addition of B2O3 to soda- lime glass

Accepted Answer

A)  results in a glass with a lower melting point. 
B)  results in opaque glass. 
C)  imparts a greater ability to withstand temperature change. 
D)  imparts a deep blue color. 
E)  results in a denser glass with a higher refractive index. 
A)  results in a glass with a lower melting point. 
B)  results in opaque glass. 
C)  imparts a greater ability to withstand temperature change. 
D)  imparts a deep blue color. 
E)  results in a denser glass with a higher refractive index.

Question 15

The correct name of H2CO3 is _ .

Accepted Answer

A)  hydrogen carbonate ion 
B)  carbonate ion 
C)  carboxylic acid 
D)  carbonic acid 
E)  hydrogen carbide 
A)  hydrogen carbonate ion 
B)  carbonate ion 
C)  carboxylic acid 
D)  carbonic acid 
E)  hydrogen carbide

Question 16

Oxides can react with water to form acids or bases.

Accepted Answer

A) True 
 B)False

Question 17

Which one of the following is false concerning pure hydrazine?

Accepted Answer

A)  It is used as a rocket fuel. 
B)  It can be made by reaction of hypochlorite and ammonia. 
C)  It is an oily, colorless liquid. 
D)  It is a clear, red liquid that is highly viscous. 
E)  Hydrazine is quite poisonous. 
A)  It is used as a rocket fuel. 
B)  It can be made by reaction of hypochlorite and ammonia. 
C)  It is an oily, colorless liquid. 
D)  It is a clear, red liquid that is highly viscous. 
E)  Hydrazine is quite poisonous.

Question 18

How are the oxygen- containing compounds of xenon made?

Accepted Answer

A)  by direct combination of the elements 
B)  by thermal decomposition of the xenon hydroxide 
C)  by reaction of the corresponding xenon fluoride with water 
D)  by reaction of xenon with peroxide 
E)  Xenon is inert and does not form compounds with oxygen. 
A)  by direct combination of the elements 
B)  by thermal decomposition of the xenon hydroxide 
C)  by reaction of the corresponding xenon fluoride with water 
D)  by reaction of xenon with peroxide 
E)  Xenon is inert and does not form compounds with oxygen.

Question 19

The Haber process is used to make from .

Accepted Answer

A)  NO2, O2 
B)  HNO3, N2 
C)  O2, KClO3 
D)  NH3, N2 
E)  NO, N2 
A)  NO2, O2 
B)  HNO3, N2 
C)  O2, KClO3 
D)  NH3, N2 
E)  NO, N2

Question 20

In a proton transfer reaction the weaker a Bronsted- Lowry acid the is its conjugate.

Accepted Answer

The answer of In a proton transfer reaction the weaker...

Exam 22: Chemistry of the Nonmetals

Hydrogen can have oxidation states of .

The oxidation state of oxygen in OF2 is

The least electronegative of the elements below is .

The oxidation numbers of nitrogen in the nitride ion, hydrazine, ammonium cation, and nitrate ion are _, , _,and ,respectively.

Why does calcium carbonate dissolve in water containing carbon dioxide?

Ozone is a pale blue poisonous gas with an irritating odor.

Of the following, which is most likely to form interstitial carbides?

Of the non radioactive halogens which is the largest?

Which of the following equations correctly represents the reaction of B2H6 with oxygen?

In the reaction of phosphorus with chlorine to form a phosphorus chloride, whether PCl3 or PCl5 forms depends on

Boric oxide is .

What is the major commercial source of elemental sulfur?

The pentahydrated salt of sodium thiosulfate, Na2S2O3 · 5H2O, is used in photographic developing to convert _.

Addition of B2O3 to soda- lime glass

The correct name of H2CO3 is _ .

Oxides can react with water to form acids or bases.

Which one of the following is false concerning pure hydrazine?

How are the oxygen- containing compounds of xenon made?

The Haber process is used to make from .

In a proton transfer reaction the weaker a Bronsted- Lowry acid the is its conjugate.

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

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters

The oxidation state of oxygen in OF₂is

Which of the following equations correctly represents the reaction of B₂H₆with oxygen?

In the reaction of phosphorus with chlorine to form a phosphorus chloride, whether PCl₃or PCl₅ forms depends on

The pentahydrated salt of sodium thiosulfate, Na₂S₂O₃· 5H₂O, is used in photographic developing to convert _.

Addition of B₂O₃to soda- lime glass

The correct name of H₂CO₃is _ .