Question 1

Predict the products for the reaction of the following set of reactants.
Mg(s)+ Cl2(g) $\to$

Accepted Answer

A) MgCl(s) 
B) MgCl2(s) 
C) MgCl(l) 
D) MgCl2(l) 
E) MgCl2(aq) 
A) MgCl(s) 
B) MgCl2(s) 
C) MgCl(l) 
D) MgCl2(l) 
E) MgCl2(aq)

Question 2

Write balanced equations,showing all reactants and products,to represent
a.the reaction of lithium metal with oxygen to form lithium oxide.
b.the formation of ammonia in the Haber process.

Accepted Answer

a.4Li(s)+ O₂(g) @#LAT-DLM& 2L

Question 3

Which of the following oxides will be the most acidic?

Accepted Answer

A) Al2O3 
B) Ga2O3 
C) In2O3 
D) Tl2O3 
E) None of these oxides is acidic. 
A) Al2O3 
B) Ga2O3 
C) In2O3 
D) Tl2O3 
E) None of these oxides is acidic.

Question 4

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 5

Potassium is a strong reducing agent.

Accepted Answer

A) True 
 B)False

Question 6

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 an aerosol propellant. 
D) a colorless gas that disproportionates into nitrogen and oxygen. 
E) None of these choices is 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 an aerosol propellant. 
D) a colorless gas that disproportionates into nitrogen and oxygen. 
E) None of these choices is correct.

Question 7

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 8

Predict the products for the following set of reactants.
Li(s)+ CH3Cl(g) $\to$

Accepted Answer

A) CH3CH3(g)+ LiCl(s) 
B) CH4(g)+ LiCl(s) 
C) CH3Li(s)+ LiCl(s) 
D) CH3Li(s)+ Cl2(g) 
E) CH2Li(s)+ HCl(g) 
A) CH3CH3(g)+ LiCl(s) 
B) CH4(g)+ LiCl(s) 
C) CH3Li(s)+ LiCl(s) 
D) CH3Li(s)+ Cl2(g) 
E) CH2Li(s)+ HCl(g)

Question 9

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 10

What are the products of the reaction of potassium hydride and water?
KH(s)+ H2O(l) $\to$

Accepted Answer

A) K(s)+ H2(g)+ OH-(aq) 
B) K(s)+ H2(g)+ O2(g) 
C) KOH(s)+ O2(g) 
D) K+(aq)+ H2(g)+ O2(g) 
E) K+(aq)+ H2(g)+ OH-(aq) 
A) K(s)+ H2(g)+ OH-(aq) 
B) K(s)+ H2(g)+ O2(g) 
C) KOH(s)+ O2(g) 
D) K+(aq)+ H2(g)+ O2(g) 
E) K+(aq)+ H2(g)+ OH-(aq)

Question 11

In the gas phase,AlCl3 exists as molecules of Al2Cl6.

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A) As3+(aq)+ Ca(OH)2(aq) 
B) As(OH)3(s)+ Ca2+(aq)+ H2(g) 
C) As(OH)3(s)+ Ca(OH)2(aq) 
D) AsH3(g)+ Ca(OH)2(aq) 
E) CaH2(aq)+ As2O3(aq) 
A) As3+(aq)+ Ca(OH)2(aq) 
B) As(OH)3(s)+ Ca2+(aq)+ H2(g) 
C) As(OH)3(s)+ Ca(OH)2(aq) 
D) AsH3(g)+ Ca(OH)2(aq) 
E) CaH2(aq)+ As2O3(aq)

Question 13

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Accepted Answer

A) True 
 B)False

Question 14

Predict the products for the reaction of the following set of reactants.
MgCO3(s)+ heat $\to$

Accepted Answer

A) Mg(s)+ CO(g) 
B) Mg(s)+ CO2(g) 
C) MgO(s)+ CO(g) 
D) MgO(s)+ CO2(g) 
E) no reaction 
A) Mg(s)+ CO(g) 
B) Mg(s)+ CO2(g) 
C) MgO(s)+ CO(g) 
D) MgO(s)+ CO2(g) 
E) no reaction

Question 15

Thallium can form two oxides,Tl2O and Tl2O3.Which will be the more basic substance?

Accepted Answer

A) Tl2O 
B) Tl2O3 
C) They have the same strength as bases. 
D) Neither compound has any acidic or basic properties. 
E) More information is needed to make an accurate prediction. 
A) Tl2O 
B) Tl2O3 
C) They have the same strength as bases. 
D) Neither compound has any acidic or basic properties. 
E) More information is needed to make an accurate prediction.

Question 16

Consider the oxides XO2,where X is one of the first 20 elements.Identify X in each of the following cases:
a.XO2 is a natural component of the atmosphere,whose buildup is implicated in climate change.
b.XO2 is a toxic,brown gas which is a serious air pollutant.
c.XO2 is a colorless,toxic gas formed during the combustion of coal.
d.XO2 is network solid;the element X itself is also a network solid.

Accepted Answer

Question 17

Predict the products for the following set of reactants.
PCl3(l)+ H2O(l) $\to$

Accepted Answer

A) H3PO3(aq)+ HCl(aq) 
B) H3PO4(aq)+ Cl2(g) 
C) PH3(g)+ HCl(aq)+ O2(g) 
D) P2O5(s)+ HCl(aq) 
E) PCl5(l)+ PH3(g)+ O2(g) 
A) H3PO3(aq)+ HCl(aq) 
B) H3PO4(aq)+ Cl2(g) 
C) PH3(g)+ HCl(aq)+ O2(g) 
D) P2O5(s)+ HCl(aq) 
E) PCl5(l)+ PH3(g)+ O2(g)

Question 18

The elements from Groups 1A(1)and 2A(2)are

Accepted Answer

A) strong acids. 
B) strong bases. 
C) amphoteric. 
D) strong oxidizing agents. 
E) strong reducing agents. 
A) strong acids. 
B) strong bases. 
C) amphoteric. 
D) strong oxidizing agents. 
E) strong reducing agents.

Question 19

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

Accepted Answer

A) Ca2+(aq)+ OH-(aq)+ H2(g) 
B) Ca2+(aq)+ H2(g)+ O2(g) 
C) Ca2+(aq)+ H3O+(aq) 
D) Ca(OH)2(s) 
E) CaH2(s)+ O2(g) 
A) Ca2+(aq)+ OH-(aq)+ H2(g) 
B) Ca2+(aq)+ H2(g)+ O2(g) 
C) Ca2+(aq)+ H3O+(aq) 
D) Ca(OH)2(s) 
E) CaH2(s)+ O2(g)

Question 20

Boron has 3 valence electrons.Which of the following processes is involved in boron's achieving a complete outer shell?

Accepted Answer

A) formation of a B3+ cation 
B) formation of bridge bonds 
C) formation of $\pi$-bonds using its d-orbitals 
D) formation of $\pi$-bonds using sp3-orbitals 
E) None of these choices is correct. 
A) formation of a B3+ cation 
B) formation of bridge bonds 
C) formation of $\pi$-bonds using its d-orbitals 
D) formation of $\pi$-bonds using sp3-orbitals 
E) None of these choices is correct.

Exam 14: The Main-Group Elements: Applying Principles of Bonding and Structure

Predict the products for the reaction of the following set of reactants. Mg(s)+ Cl2(g) →\to→

Write balanced equations,showing all reactants and products,to represent a.the reaction of lithium metal with oxygen to form lithium oxide. b.the formation of ammonia in the Haber process.

Which of the following oxides will be the most acidic?

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?

Potassium is a strong reducing agent.

Dinitrogen monoxide,N2O,is

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

Predict the products for the following set of reactants. Li(s)+ CH3Cl(g) →\to→

Which of the following has the most allotropes?

What are the products of the reaction of potassium hydride and water? KH(s)+ H2O(l) →\to→

In the gas phase,AlCl3 exists as molecules of Al2Cl6.

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

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Predict the products for the reaction of the following set of reactants. MgCO3(s)+ heat →\to→

Thallium can form two oxides,Tl2O and Tl2O3.Which will be the more basic substance?

Predict the products for the following set of reactants. PCl3(l)+ H2O(l) →\to→

The elements from Groups 1A(1)and 2A(2)are

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

Boron has 3 valence electrons.Which of the following processes is involved in boron's achieving a complete outer shell?

Keys to the Study of Chemistry

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 Solutions

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 the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Predict the products for the reaction of the following set of reactants. Mg(s)+ Cl₂(g) $\to$

Dinitrogen monoxide,N₂O,is

Predict the products for the following set of reactants. Li(s)+ CH₃Cl(g) $\to$

What are the products of the reaction of potassium hydride and water? KH(s)+ H₂O(l) $\to$

In the gas phase,AlCl₃ exists as molecules of Al₂Cl₆.

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

Predict the products for the reaction of the following set of reactants. MgCO₃(s)+ heat $\to$

Thallium can form two oxides,Tl₂O and Tl₂O₃.Which will be the more basic substance?

Predict the products for the following set of reactants. PCl₃(l)+ H₂O(l) $\to$

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