Question 1

Which of the following oxides will give the most acidic solution when dissolved in water?

Accepted Answer

A) MgO 
B) Al 2O 3 
C) Cl 2O 
D) SrO 
E) H 2O 2 
A) MgO 
B) Al 2O 3 
C) Cl 2O 
D) SrO 
E) H 2O 2

Question 2

Predict the products for the following set of reactants. Li(s) + H2O(l) →

Accepted Answer

A) Li +( aq)+ H 2( g)+ O 2( g) 
B) Li +( aq)+ H 2( g)+ OH −( aq) 
C) LiH( s)+ O 2( g) 
D) Li +( aq)+ H 2O 2( aq) 
E) LiOH( aq)+ H 2O 2( aq) 
A) Li +( aq)+ H 2( g)+ O 2( g) 
B) Li +( aq)+ H 2( g)+ OH −( aq) 
C) LiH( s)+ O 2( g) 
D) Li +( aq)+ H 2O 2( aq) 
E) LiOH( aq)+ H 2O 2( aq)

Question 3

Most of the alkali metal salts are soluble in water while many alkaline earth salts have very low solubilities. Why is this so?

Accepted Answer

A) The alkali metal cations are smaller than the alkaline earth cations and are more easily hydrated. 
B) The alkali metals have lower ionization energies than alkaline earth elements. 
C) The alkaline earth salts have much greater lattice energies than the alkali metal salts. 
D) The alkaline earth metals have greater heats of atomization than the alkali metals. 
E) Alkaline earth cations have very low heats of hydration. 
A) The alkali metal cations are smaller than the alkaline earth cations and are more easily hydrated. 
B) The alkali metals have lower ionization energies than alkaline earth elements. 
C) The alkaline earth salts have much greater lattice energies than the alkali metal salts. 
D) The alkaline earth metals have greater heats of atomization than the alkali metals. 
E) Alkaline earth cations have very low heats of hydration.

Question 4

Elements of group 1A have higher melting and boiling points than those of group 2A.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following has the most allotropes?

Accepted Answer

A) Carbon 
B) Sulfur 
C) Oxygen 
D) Selenium 
E) Nitrogen 
A) Carbon 
B) Sulfur 
C) Oxygen 
D) Selenium 
E) Nitrogen

Question 6

Which of the following oxides will be the most acidic?

Accepted Answer

A) Al 2O 3 
B) Ga 2O 3 
C) In 2O 3 
D) Tl 2O 3 
E) None of these oxides is acidic. 
A) Al 2O 3 
B) Ga 2O 3 
C) In 2O 3 
D) Tl 2O 3 
E) None of these oxides is acidic.

Question 7

Predict the products for the reaction of the following set of reactants. CaO(s) + H2O(l) →

Accepted Answer

A) Ca 2+( aq)+ OH −( aq)+ H 2( g) 
B) Ca 2+( aq)+ H 2( g)+ O 2( g) 
C) Ca 2+( aq)+ H 3O +( aq) 
D) Ca(OH)2( s) 
E) CaH 2( s)+ O 2( g) 
A) Ca 2+( aq)+ OH −( aq)+ H 2( g) 
B) Ca 2+( aq)+ H 2( g)+ O 2( g) 
C) Ca 2+( aq)+ H 3O +( aq) 
D) Ca(OH)2( s) 
E) CaH 2( s)+ O 2( g)

Question 8

Which element forms compounds that are involved in smog and acid rain?

Accepted Answer

A) Carbon 
B) Fluorine 
C) Chlorine 
D) Boron 
E) Nitrogen 
A) Carbon 
B) Fluorine 
C) Chlorine 
D) Boron 
E) Nitrogen

Question 9

Predict the products for the reaction of the following set of reactants. Sr(s) + H2O(l) →

Accepted Answer

A) SrO( s)+ H 2( g) 
B) Sr 2+( aq)+ H 2( g)+ O 2( g) 
C) Sr 2+( aq)+ H 3O +( aq) 
D) Sr(OH)2( s)+ H 2( g) 
E) SrH 2( s)+ O 2( g) 
A) SrO( s)+ H 2( g) 
B) Sr 2+( aq)+ H 2( g)+ O 2( g) 
C) Sr 2+( aq)+ H 3O +( aq) 
D) Sr(OH)2( s)+ H 2( g) 
E) SrH 2( s)+ O 2( g)

Question 10

Unlike the remainder of the Group 1A(1) elements, lithium forms many salts that have some covalent bond character. What is a reason for this behavior?

Accepted Answer

A) The high first ionization energy of lithium makes sharing the electron easier than transferring it. 
B) The high charge density on the lithium cation deforms nearby polarizable electron clouds. 
C) The atomic radius of lithium enables it to share its valence electron effectively. 
D) Since lithium has only 1 electron in its 2s orbital, it can accept an electron from another element. 
E) Lithium's electronegativity is more like that of a non-metal than a metal. 
A) The high first ionization energy of lithium makes sharing the electron easier than transferring it. 
B) The high charge density on the lithium cation deforms nearby polarizable electron clouds. 
C) The atomic radius of lithium enables it to share its valence electron effectively. 
D) Since lithium has only 1 electron in its 2s orbital, it can accept an electron from another element. 
E) Lithium's electronegativity is more like that of a non-metal than a metal.

Question 11

Predict the products for the following set of reactants. H2O(l) + ClF5(l) →

Accepted Answer

A) HClO 2( aq)+ HF( aq) 
B) HClO 3( aq)+ HF( aq) 
C) HClO( aq)+ HF( aq) 
D) HCl( aq)+ HF( aq) 
E) HClO( aq)+ HFO( aq) 
A) HClO 2( aq)+ HF( aq) 
B) HClO 3( aq)+ HF( aq) 
C) HClO( aq)+ HF( aq) 
D) HCl( aq)+ HF( aq) 
E) HClO( aq)+ HFO( aq)

Question 12

Nitric acid, HNO3

Accepted Answer

A) is a strong reducing agent. 
B) is a weak oxidizing agent. 
C) does not react with copper metal. 
D) may react with copper metal to produce NO gas. 
E) reacts with metal hydroxides to produce nitrite salts. 
A) is a strong reducing agent. 
B) is a weak oxidizing agent. 
C) does not react with copper metal. 
D) may react with copper metal to produce NO gas. 
E) reacts with metal hydroxides to produce nitrite salts.

Question 13

Ozone is both a pollutant and a natural component of the atmosphere.

Accepted Answer

A) True 
 B)False

Question 14

Dinitrogen monoxide, N2O, is

Accepted Answer

A) a brown poisonous gas that is one of the chemicals involved in the production of photochemical smog. 
B) a colorless gas used in the production of nitric acid. 
C) a colorless gas used as a propellant in canned whipped cream. 
D) a colorless gas that disproportionates into nitrogen and oxygen. 
E) None of these choices are correct. 
A) a brown poisonous gas that is one of the chemicals involved in the production of photochemical smog. 
B) a colorless gas used in the production of nitric acid. 
C) a colorless gas used as a propellant in canned whipped cream. 
D) a colorless gas that disproportionates into nitrogen and oxygen. 
E) None of these choices are correct.

Question 15

Which of the following substances is produced when lithium metal reacts with oxygen gas?

Accepted Answer

A) Hydrogen gas 
B) Lithium peroxide 
C) An acidic oxide 
D) A basic oxide 
E) Lithium hydroxide 
A) Hydrogen gas 
B) Lithium peroxide 
C) An acidic oxide 
D) A basic oxide 
E) Lithium hydroxide

Question 16

Silicon halides have stronger bonds than corresponding carbon halides. Which of the following is a possible explanation of this phenomenon?

Accepted Answer

A) The larger silicon atoms permit better overlap of its atomic orbitals with those of the halogens than the smaller carbons atoms do. 
B) The large electronegativity difference between silicon and the halogens makes their bonds stronger than those of carbon. 
C) Silicon has the ability to form a partial double bond with a halogen through the overlap of its d-orbital with a p-orbital of the halogen. 
D) Silicon has a larger effective nuclear charge than carbon which allows it to bond more strongly to the more negative halogens than carbon. 
E) Carbon-halogen bonds are unusually weak. 
A) The larger silicon atoms permit better overlap of its atomic orbitals with those of the halogens than the smaller carbons atoms do. 
B) The large electronegativity difference between silicon and the halogens makes their bonds stronger than those of carbon. 
C) Silicon has the ability to form a partial double bond with a halogen through the overlap of its d-orbital with a p-orbital of the halogen. 
D) Silicon has a larger effective nuclear charge than carbon which allows it to bond more strongly to the more negative halogens than carbon. 
E) Carbon-halogen bonds are unusually weak.

Question 17

The halogens act as oxidizing agents in most of their reactions.

Accepted Answer

A) True 
 B)False

Question 18

Predict the products formed from the following set of reactants. FeSe(s) + HCl(aq) →

Accepted Answer

A) Se( s)+ FeCl 2( aq) 
B) SeCl 2( s)+ Fe( s)+ H 2( g) 
C) FeH 2( s)+ SeCl 2( l) 
D) H 2Se( g)+ Fe( s)+ Cl 2( g) 
E) H 2Se( g)+ FeCl 2( aq) 
A) Se( s)+ FeCl 2( aq) 
B) SeCl 2( s)+ Fe( s)+ H 2( g) 
C) FeH 2( s)+ SeCl 2( l) 
D) H 2Se( g)+ Fe( s)+ Cl 2( g) 
E) H 2Se( g)+ FeCl 2( aq)

Question 19

Predict the products for the following set of reactants. Ca3As2(s) + H2O(l) →

Accepted Answer

A) As 3+( aq)+ Ca(OH)2( aq) 
B) As(OH)3( s)+ Ca 2+( aq)+ H 2( g) 
C) As(OH)3( s)+ Ca(OH)2( aq) 
D) AsH 3( g)+ Ca(OH)2( aq) 
E) CaH 2( aq)+ As 2O 3( aq) 
A) As 3+( aq)+ Ca(OH)2( aq) 
B) As(OH)3( s)+ Ca 2+( aq)+ H 2( g) 
C) As(OH)3( s)+ Ca(OH)2( aq) 
D) AsH 3( g)+ Ca(OH)2( aq) 
E) CaH 2( aq)+ As 2O 3( aq)

Question 20

Carbon monoxide's toxicity is related to its ability to bond to iron in hemoglobin.

Accepted Answer

A) True 
 B)False

Exam 14: Periodic Patterns in the Main-Group Elements

Which of the following oxides will give the most acidic solution when dissolved in water?

Predict the products for the following set of reactants. Li(s) + H2O(l) →

Most of the alkali metal salts are soluble in water while many alkaline earth salts have very low solubilities. Why is this so?

Elements of group 1A have higher melting and boiling points than those of group 2A.

Which of the following has the most allotropes?

Which of the following oxides will be the most acidic?

Predict the products for the reaction of the following set of reactants. CaO(s) + H2O(l) →

Which element forms compounds that are involved in smog and acid rain?

Predict the products for the reaction of the following set of reactants. Sr(s) + H2O(l) →

Unlike the remainder of the Group 1A(1) elements, lithium forms many salts that have some covalent bond character. What is a reason for this behavior?

Predict the products for the following set of reactants. H2O(l) + ClF5(l) →

Nitric acid, HNO3

Ozone is both a pollutant and a natural component of the atmosphere.

Dinitrogen monoxide, N2O, is

Which of the following substances is produced when lithium metal reacts with oxygen gas?

Silicon halides have stronger bonds than corresponding carbon halides. Which of the following is a possible explanation of this phenomenon?

The halogens act as oxidizing agents in most of their reactions.

Predict the products formed from the following set of reactants. FeSe(s) + HCl(aq) →

Predict the products for the following set of reactants. Ca3As2(s) + H2O(l) →

Carbon monoxide's toxicity is related to its ability to bond to iron in hemoglobin.

Keys to the Study of Chemistry: Definitions, Units, and Problem Solving

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and Reaction Direction

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Predict the products for the following set of reactants. Li(s) + H₂O(l) →

Predict the products for the reaction of the following set of reactants. CaO(s) + H₂O(l) →

Predict the products for the reaction of the following set of reactants. Sr(s) + H₂O(l) →

Predict the products for the following set of reactants. H₂O(l) + ClF₅(l) →

Nitric acid, HNO₃

Dinitrogen monoxide, N₂O, is

Predict the products for the following set of reactants. Ca₃As₂(s) + H₂O(l) →