Question 1

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

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)  F) C) and E)
G) A) and C)

Question 2

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

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)  F) C) and E)
G) D) and E)

Question 3

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.F) C) and D)
G) A) and C)

Question 4

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.F) A) and E)
G) None of the above

Question 5

Which of the following has the most allotropes?

Accepted Answer

A)  carbon
B)  sulfur
C)  oxygen
D)  selenium
E)  nitrogenF) D) and E)
G) B) and E)

Question 6

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

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)  F) A) and D)
G) All of the above

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Accepted Answer

A) True 
 B)False

Question 9

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 10

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.F) C) and D)
G) None of the above

Question 11

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.F) B) and E)
G) A) and E)

Question 12

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

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 F) None of the above
G) B) and D)

Question 13

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  π\piπ -bonds using its d-orbitals
D)  formation of  π\piπ -bonds using sp3-orbitals
E)  None of these choices is correct. F) C) and E)
G) All of the above

Question 14

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

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)  F) A) and C)
G) C) and E)

Question 15

Potassium is a strong reducing agent.

Accepted Answer

A) True 
 B)False

Question 16

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.F) A) and E)
G) C) and E)

Question 17

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.F) D) and E)
G) A) and E)

Question 18

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

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)  F) A) and E)
G) B) and D)

Question 19

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

Accepted Answer

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

Question 20

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)

2L...

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

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

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

Correct Answer
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Which of the following oxides will be the most acidic?

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

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

Correct Answer
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Sulfuric acid is produced when sulfur dioxide dissolves in water.

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

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

Correct Answer
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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.

Correct Answer
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a.4Li(s)+ O₂(g) 2L...
View Answer

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?

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

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

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

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

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

Correct Answer
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Potassium is a strong reducing agent.

Correct Answer
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Which of the following has the most allotropes?

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

Correct Answer
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Dinitrogen monoxide,N₂O,is

Correct Answer
verified

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

Correct AnswerverifiedShow Answer

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

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

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Which of the following oxides will be the most acidic?

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

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

Correct AnswerverifiedShow Answer

Sulfuric acid is produced when sulfur dioxide dissolves in water.

Correct AnswerverifiedShow Answer

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

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

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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.

Correct Answerverifieda.4Li(s)+ O2(g) 2L...View AnswerShow Answer

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?

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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

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Potassium is a strong reducing agent.

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Which of the following has the most allotropes?

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

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Dinitrogen monoxide,N2O,is

Correct AnswerverifiedShow Answer

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

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

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

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

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

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

Correct Answer
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Correct Answer
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a.4Li(s)+ O₂(g) 2L...
View Answer

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

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

Correct Answer
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Correct Answer
verified

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

Correct Answer
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Dinitrogen monoxide,N₂O,is

Correct Answer
verified