Question 1

Ionic hydrides do not have exact (stoichiometric) formulas.

Accepted Answer

A) True 
 B)False

Question 2

Predict the products for the reaction of the following set of reactants. BaO(s) + CO2(g) →

Accepted Answer

A) BaCO 3( s) 
B) Ba( s)+ CO( g)+ O 2( g) 
C) BaO 2( s)+ CO( g) 
D) Ba 2CO 3( s) 
E) BaC 2( s)+ O 2( g) 
A) BaCO 3( s) 
B) Ba( s)+ CO( g)+ O 2( g) 
C) BaO 2( s)+ CO( g) 
D) Ba 2CO 3( s) 
E) BaC 2( s)+ O 2( g)

Question 3

The largest electronegativities are found in the __________ __________ region of the periodic table.

Accepted Answer

A) upper left 
B) upper right 
C) lower left 
D) lower right 
E) transition element ( d-block) 
A) upper left 
B) upper right 
C) lower left 
D) lower right 
E) transition element ( d-block)

Question 4

Which, if any, of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Accepted Answer

A) XY 
B) XY 2 
C) XY 3 
D) XY 5 
E) All of these choices are correct. 
A) XY 
B) XY 2 
C) XY 3 
D) XY 5 
E) All of these choices are correct.

Question 5

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Accepted Answer

A) True 
 B)False

Question 6

Potassium nitrate is a strong reducing agent.

Accepted Answer

A) True 
 B)False

Question 7

Hydrogen forms metallic (interstitial) hydrides with the d and f transition elements. Which of the following statements is correct?

Accepted Answer

A) These substances have distinct stoichiometric formulas like ionic hydrides. 
B) Hydrogen forms bonds with the metals by donating its electron to the valence band of the metal. 
C) Hydrogen molecules and atoms occupy holes within the crystal structure of the metal. 
D) These substances are useful catalysts. 
E) These hydrides are stabilized by hydrogen bonding forces. 
A) These substances have distinct stoichiometric formulas like ionic hydrides. 
B) Hydrogen forms bonds with the metals by donating its electron to the valence band of the metal. 
C) Hydrogen molecules and atoms occupy holes within the crystal structure of the metal. 
D) These substances are useful catalysts. 
E) These hydrides are stabilized by hydrogen bonding forces.

Question 8

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 9

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

Accepted Answer

A) K( s)+ H 2( g)+ OH −( aq) 
B) K( s)+ H 2( g)+ O 2( g) 
C) KOH( s)+ O 2( g) 
D) K +( aq)+ H 2( g)+ O 2( g) 
E) K +( aq)+ H 2( g)+ OH −( aq) 
A) K( s)+ H 2( g)+ OH −( aq) 
B) K( s)+ H 2( g)+ O 2( g) 
C) KOH( s)+ O 2( g) 
D) K +( aq)+ H 2( g)+ O 2( g) 
E) K +( aq)+ H 2( g)+ OH −( aq)

Question 10

What are the products of the following reaction of strontium hydride and water? SrH2(s) + H2O(l) →

Accepted Answer

A) Sr 2+( aq)+ H 2( g)+ O 2( g) 
B) Sr 2+( aq)+ H 2( g)+ OH −( aq) 
C) Sr( s)+ H 2( g)+ OH −( aq) 
D) Sr( s)+ H 3O +( aq) 
E) None of these choices are correct. 
A) Sr 2+( aq)+ H 2( g)+ O 2( g) 
B) Sr 2+( aq)+ H 2( g)+ OH −( aq) 
C) Sr( s)+ H 2( g)+ OH −( aq) 
D) Sr( s)+ H 3O +( aq) 
E) None of these choices are correct.

Question 11

The polymers containing silicon differ from polymers of carbon in which of the following ways?

Accepted Answer

A) Silicon-based polymers are larger molecules than carbon-based polymers. 
B) Silicon-based polymers generally have a repeating silicon-oxygen link while carbon-based polymers can have carbon-carbon links. 
C) Silicon-based polymers generally have inorganic elements attached to the chain while carbon-based polymers generally have organic groups attached. 
D) Silicon-based polymers tend to be rigid while carbon-based polymers are generally flexible. 
E) Silicon forms stronger bonds than carbon. 
A) Silicon-based polymers are larger molecules than carbon-based polymers. 
B) Silicon-based polymers generally have a repeating silicon-oxygen link while carbon-based polymers can have carbon-carbon links. 
C) Silicon-based polymers generally have inorganic elements attached to the chain while carbon-based polymers generally have organic groups attached. 
D) Silicon-based polymers tend to be rigid while carbon-based polymers are generally flexible. 
E) Silicon forms stronger bonds than carbon.

Question 12

Oxides of group 1A (1) and 2A (2) elements are strongly acidic.

Accepted Answer

A) True 
 B)False

Question 13

Neon does not form any known compounds.

Accepted Answer

A) True 
 B)False

Question 14

When elements from a group exhibit more than one oxidation state,

Accepted Answer

A) the higher oxidation state is more important as one goes down a group. 
B) the lower oxidation state is more important as one goes down a group. 
C) both oxidation states are equally important throughout the group. 
D) the oxidation state will be affected by the elements on either side of it in the period. 
E) None of these choices are correct. 
A) the higher oxidation state is more important as one goes down a group. 
B) the lower oxidation state is more important as one goes down a group. 
C) both oxidation states are equally important throughout the group. 
D) the oxidation state will be affected by the elements on either side of it in the period. 
E) None of these choices are correct.

Question 15

Comparing neon with xenon, one would expect neon to have a __________ density at STP, and a __________ normal boiling point than xenon.

Accepted Answer

A) higher, higher 
B) higher, lower 
C) lower, higher 
D) lower, lower 
E) Since they are both noble gases, their densities and boiling points will be very similar. 
A) higher, higher 
B) higher, lower 
C) lower, higher 
D) lower, lower 
E) Since they are both noble gases, their densities and boiling points will be very similar.

Question 16

Which of the following ions and atoms has the greatest radius?

Accepted Answer

A) Se 2− 
B) Br − 
C) Rb + 
D) Sr 2+ 
E) Kr 
A) Se 2− 
B) Br − 
C) Rb + 
D) Sr 2+ 
E) Kr

Question 17

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

Accepted Answer

A) SO 2 
B) CO 2 
C) K 2O 
D) P 4O 10 
E) SO 3 
A) SO 2 
B) CO 2 
C) K 2O 
D) P 4O 10 
E) SO 3

Question 18

Sodium hypochlorite is used

Accepted Answer

A) in chemical analysis. 
B) as an oxidizer in rocket fuels. 
C) as a disinfectant. 
D) in the manufacture of steel. 
E) as a detergent. 
A) in chemical analysis. 
B) as an oxidizer in rocket fuels. 
C) as a disinfectant. 
D) in the manufacture of steel. 
E) as a detergent.

Question 19

Which of the following is the strongest acid?

Accepted Answer

A) HClO 3 
B) HBrO 3 
C) HIO 3 
D) HIO 2 
E) HClO 
A) HClO 3 
B) HBrO 3 
C) HIO 3 
D) HIO 2 
E) HClO

Question 20

Which of the following will have the highest boiling point?

Accepted Answer

A) O 2 
B) Cl 2 
C) Br 2 
D) I 2 
E) Xe 
A) O 2 
B) Cl 2 
C) Br 2 
D) I 2 
E) Xe

Exam 14: Periodic Patterns in the Main-Group Elements

Ionic hydrides do not have exact (stoichiometric) formulas.

Predict the products for the reaction of the following set of reactants. BaO(s) + CO2(g) →

The largest electronegativities are found in the __________ __________ region of the periodic table.

Which, if any, of the following generalized formulas does not exist for interhalogen compounds? (X and Y represent different halogens.)

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Potassium nitrate is a strong reducing agent.

Hydrogen forms metallic (interstitial) hydrides with the d and f transition elements. Which of the following statements is correct?

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

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

What are the products of the following reaction of strontium hydride and water? SrH2(s) + H2O(l) →

The polymers containing silicon differ from polymers of carbon in which of the following ways?

Oxides of group 1A (1) and 2A (2) elements are strongly acidic.

Neon does not form any known compounds.

When elements from a group exhibit more than one oxidation state,

Comparing neon with xenon, one would expect neon to have a __________ density at STP, and a __________ normal boiling point than xenon.

Which of the following ions and atoms has the greatest radius?

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

Sodium hypochlorite is used

Which of the following is the strongest acid?

Which of the following will have the highest boiling point?

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 reaction of the following set of reactants. BaO(s) + CO₂(g) →

The largest electronegativities are found in the region of the periodic table.

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

What are the products of the following reaction of strontium hydride and water? SrH₂(s) + H₂O(l) →

Comparing neon with xenon, one would expect neon to have a density at STP, and a normal boiling point than xenon.