Question 1

The basic character of the binary oxides XmOn

Accepted Answer

A)  is greatest when X has a low atomic number. 
B)  is greatest when X is a nonmetal. 
C)  increases as the oxidation number of X increases. 
D)  increases as the oxidation number of X decreases. 
E)  is unaffected by the oxidation number of X. 
A)  is greatest when X has a low atomic number. 
B)  is greatest when X is a nonmetal. 
C)  increases as the oxidation number of X increases. 
D)  increases as the oxidation number of X decreases. 
E)  is unaffected by the oxidation number of X. D

Question 2

Potassium is a strong reducing agent.

Accepted Answer

A) True 
 B)False  True

Question 3

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

Accepted Answer

A)  SrO(s) + H2(g) 
B)  Sr2+(aq) + H2(g) + O2(g) 
C)  Sr2+(aq) + H3O+(aq) 
D)  Sr(OH)2(s) + H2(g) 
E)  SrH2(s) + O2(g) 
A)  SrO(s) + H2(g) 
B)  Sr2+(aq) + H2(g) + O2(g) 
C)  Sr2+(aq) + H3O+(aq) 
D)  Sr(OH)2(s) + H2(g) 
E)  SrH2(s) + O2(g) D

Question 4

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 5

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

The answer of Write balanced equations, showing all reactants and...

Question 6

The nitrate anion is

Accepted Answer

A)  a strong acid. 
B)  a strong base. 
C)  amphoteric. 
D)  a strong reducing agent. 
E)  a strong oxidizing agent. 
A)  a strong acid. 
B)  a strong base. 
C)  amphoteric. 
D)  a strong reducing agent. 
E)  a strong oxidizing agent.

Question 7

Name the three allotropes of carbon and briefly describe their properties and structures.

Accepted Answer

Graphite is the stablest allotrope under

Question 8

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 9

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 10

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

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 11

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

Accepted Answer

A)  Sr2+(aq) + H2(g) + O2(g) 
B)  Sr2+(aq) + H2(g) + OH¯(aq) 
C)  Sr(s) + H2(g) + OH¯(aq) 
D)  Sr(s) + H3O+(aq) 
E)  None of these choices is correct. 
A)  Sr2+(aq) + H2(g) + O2(g) 
B)  Sr2+(aq) + H2(g) + OH¯(aq) 
C)  Sr(s) + H2(g) + OH¯(aq) 
D)  Sr(s) + H3O+(aq) 
E)  None of these choices is correct.

Question 12

Predict the products for the reaction of the following set of reactants. (CH3)3Ga(g) + AsH3(g) $\rightarrow$

Accepted Answer

A)  (CH3)3As(g) + GaH3(g) 
B)  CH4(g) + GaAs(s) 
C)  CH3CH3(g) + GaAs(s) 
D)  CH4(g) + H2GaAs(s) 
E)  CH3H(g) + GaAs(s) 
A)  (CH3)3As(g) + GaH3(g) 
B)  CH4(g) + GaAs(s) 
C)  CH3CH3(g) + GaAs(s) 
D)  CH4(g) + H2GaAs(s) 
E)  CH3H(g) + GaAs(s)

Question 13

Neon does not form any known compounds.

Accepted Answer

A) True 
 B)False

Question 14

Group 1A elements are less reactive than group 2A elements.

Accepted Answer

A) True 
 B)False

Question 15

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

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 16

Bromine will form compounds with each of the other elements in Period 4 of the periodic table. How does the type of bonding in the compounds change as one moves from potassium bromide to selenium bromide?

Accepted Answer

A)  ionic to polar covalent 
B)  polar covalent to ionic 
C)  polar covalent to non-polar covalent 
D)  coordinate covalent to polar covalent 
E)  None of these choices is correct. 
A)  ionic to polar covalent 
B)  polar covalent to ionic 
C)  polar covalent to non-polar covalent 
D)  coordinate covalent to polar covalent 
E)  None of these choices is correct.

Question 17

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

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 18

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 19

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 20

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

Accepted Answer

A) True 
 B)False

Exam 14: Periodic Patterns in the Main-Group Elements

The basic character of the binary oxides XmOn

Potassium is a strong reducing agent.

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

Which of the following atoms has the smallest volume?

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.

The nitrate anion is

Name the three allotropes of carbon and briefly describe their properties and structures.

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

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

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

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

Predict the products for the reaction of the following set of reactants. (CH3)3Ga(g) + AsH3(g) →\rightarrow→

Neon does not form any known compounds.

Group 1A elements are less reactive than group 2A elements.

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

Bromine will form compounds with each of the other elements in Period 4 of the periodic table. How does the type of bonding in the compounds change as one moves from potassium bromide to selenium bromide?

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

Nitric acid, HNO3

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

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

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 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

The basic character of the binary oxides X_mO_n

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

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

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

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

Predict the products for the reaction of the following set of reactants. (CH₃)₃Ga(g) + AsH₃(g) $\rightarrow$

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

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

Nitric acid, HNO₃

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