Question 1

Predict the products for the following set of reactants. Bi(s) + Cl2(g) F1F1F1S1F1F1F10

Accepted Answer

A)  BiCl 
B)  BiCl2 
C)  BiCl3 
D)  BiCl4 
E)  BiCl5 
A)  BiCl 
B)  BiCl2 
C)  BiCl3 
D)  BiCl4 
E)  BiCl5

Question 2

Which one of the following elements is likely to exhibit the most violent and rapid reaction with water?

Accepted Answer

A)  Na 
B)  Rb 
C)  Mg 
D)  Sr 
E)  Cl2 
A)  Na 
B)  Rb 
C)  Mg 
D)  Sr 
E)  Cl2

Question 3

Write balanced equations, showing all reactants and products, to represent
a. the reaction of calcium metal with water.
b. the reaction of aluminum metal with oxygen gas.

Accepted Answer

a. Ca(s) + 2H₂O(l) F1

Question 4

Each one of the following statements applies to an element or elements from one of the main groups (1A through 8A). Identify the group number appropriate to each of the statements, and write it in the left hand margin alongside that statement.
a. This group contains the element with the lowest ionization potential of any element.
b. The maximum oxidation number of any element in this group is +5.
c. An element X in this group forms a stable, unreactive gas, XF6.

Accepted Answer

a. 1A (1)

Question 5

Predict the products for the reaction of the following set of reactants. Mg(s) + Cl2(g) F1F1F1S1F1F1F10

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 6

Predict the products for the following set of reactants. K2O(s) + H2O(l) F1F1F1S1F1F1F10

Accepted Answer

A)  K+(aq) + OH-(aq) + H2(g) 
B)  K+(aq) + OH-(aq) 
C)  K+(aq) + H2(g) + O2(g) 
D)  KH(s) + O2(g) 
E)  K+(aq) + OH-(aq) + H2O2(aq) 
A)  K+(aq) + OH-(aq) + H2(g) 
B)  K+(aq) + OH-(aq) 
C)  K+(aq) + H2(g) + O2(g) 
D)  KH(s) + O2(g) 
E)  K+(aq) + OH-(aq) + H2O2(aq)

Question 7

Which of the following bonds should have the greatest ionic character?

Accepted Answer

A)  O-F 
B)  N-F 
C)  C-F 
D)  B-F 
E)  Cl-F 
A)  O-F 
B)  N-F 
C)  C-F 
D)  B-F 
E)  Cl-F

Question 8

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) F1F

Question 9

The Haber process is the first step in the manufacture of sulfuric acid.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following elements has the lowest electronegativity?

Accepted Answer

A)  Al 
B)  S 
C)  Mg 
D)  In 
E)  Ba 
A)  Al 
B)  S 
C)  Mg 
D)  In 
E)  Ba

Question 11

The acidity of oxides of main group elements increases down a group, from top to bottom.

Accepted Answer

A) True 
 B)False

Question 12

Hydrogen fluoride is used

Accepted Answer

A)  in the manufacture of steel. 
B)  in the synthesis of cryolite for aluminum production. 
C)  as an oxidizing agent. 
D)  as a disinfectant. 
E)  as a mouthwash. 
A)  in the manufacture of steel. 
B)  in the synthesis of cryolite for aluminum production. 
C)  as an oxidizing agent. 
D)  as a disinfectant. 
E)  as a mouthwash.

Question 13

Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of these interesting diagonal relationships occurs between beryllium and aluminum. Which of the following is one of their differences?

Accepted Answer

A)  Some aluminum compounds and all beryllium compounds show significant covalent character in the gas phase. 
B)  Beryllium forms bridge bonds in its hydrides while aluminum does not. 
C)  Both form oxides that are impervious to reaction with water. 
D)  The cations for both strongly polarize nearby electron clouds. 
E)  Beryllium occurs in nature as the uncombined element, whereas aluminum does not. 
A)  Some aluminum compounds and all beryllium compounds show significant covalent character in the gas phase. 
B)  Beryllium forms bridge bonds in its hydrides while aluminum does not. 
C)  Both form oxides that are impervious to reaction with water. 
D)  The cations for both strongly polarize nearby electron clouds. 
E)  Beryllium occurs in nature as the uncombined element, whereas aluminum does not.

Question 14

Which of the following atoms has the smallest volume?

Accepted Answer

A)  Ba 
B)  Cs 
C)  Sr 
D)  Rb 
E)  I 
A)  Ba 
B)  Cs 
C)  Sr 
D)  Rb 
E)  I

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

In which of the following ways is lithium different from the other alkali metals?

Accepted Answer

A)  Its salts are much more soluble in water than those of the other alkali metals. 
B)  It has an unusually high density. 
C)  It forms molecular compounds with the hydrocarbon groups of organic halides. 
D)  Its ionization energy is lower than expected. 
E)  It does not react with water at room temperature. 
A)  Its salts are much more soluble in water than those of the other alkali metals. 
B)  It has an unusually high density. 
C)  It forms molecular compounds with the hydrocarbon groups of organic halides. 
D)  Its ionization energy is lower than expected. 
E)  It does not react with water at room temperature.

Question 17

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Accepted Answer

A) True 
 B)False

Question 18

Potassium nitrate is a strong reducing agent.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following would you predict to have the greatest thermal stability?

Accepted Answer

A)  AsAt3 
B)  AsI3 
C)  AsBr3 
D)  AsCl3 
E)  AsF3 
A)  AsAt3 
B)  AsI3 
C)  AsBr3 
D)  AsCl3 
E)  AsF3

Question 20

Predict the products for the reaction of the following set of reactants. MgCO3(s) + heat F1F1F1S1F1F1F10

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

Exam 14: Periodic Patterns in the Main Group Elements: Bonding, Structure, and Reactivity

Predict the products for the following set of reactants. Bi(s) + Cl2(g) 

Which one of the following elements is likely to exhibit the most violent and rapid reaction with water?

Write balanced equations, showing all reactants and products, to represent a. the reaction of calcium metal with water. b. the reaction of aluminum metal with oxygen gas.

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

Predict the products for the following set of reactants. K2O(s) + H2O(l) 

Which of the following bonds should have the greatest ionic character?

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.

The Haber process is the first step in the manufacture of sulfuric acid.

Which of the following elements has the lowest electronegativity?

The acidity of oxides of main group elements increases down a group, from top to bottom.

Hydrogen fluoride is used

Certain Period 2 elements exhibit behaviors similar to Period 3 elements immediately below and to the right. One of these interesting diagonal relationships occurs between beryllium and aluminum. Which of the following is one of their differences?

Which of the following atoms has the smallest volume?

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

In which of the following ways is lithium different from the other alkali metals?

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Potassium nitrate is a strong reducing agent.

Which of the following would you predict to have the greatest thermal stability?

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

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

The 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 the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Predict the products for the following set of reactants. Bi(s) + Cl₂(g) 

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

Predict the products for the following set of reactants. K₂O(s) + H₂O(l) 

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

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