Question 1

When XeF4 acts as a fluorinating agent,

Accepted Answer

A) F2 is produced. 
B) XeF4 disproportionates. 
C) XeF3+ is produced and is the reactive species. 
D) Xe is reduced. 
E) Xe is oxidized. 
A) F2 is produced. 
B) XeF4 disproportionates. 
C) XeF3+ is produced and is the reactive species. 
D) Xe is reduced. 
E) Xe is oxidized.

Question 2

All the following acids have pKas smaller than 2.0 except

Accepted Answer

A) HIO. 
B) HBrO3.  
C) HClO3.  
D) HIO4.  
E) HClO4.  
A) HIO. 
B) HBrO3.  
C) HClO3.  
D) HIO4.  
E) HClO4.

Question 3

What is the shape of sulfur dichloride?

Accepted Answer

A) Bent (~109o) 
B) Linear 
C) Bent (~120o) 
D) Trigonal pyramidal 
E) Tetrahedral 
A) Bent (~109o) 
B) Linear 
C) Bent (~120o) 
D) Trigonal pyramidal 
E) Tetrahedral

Question 4

What property of lithium makes the lithium-ion battery an excellent energy storage device?

Accepted Answer

A) Li+ has strong polarizing power. 
B) Lithium-ion is a good reducing agent. 
C) Lithium has a high density. 
D) Lithium has the most negative standard potential of all the elements. 
E) Li+ has a small radius. 
A) Li+ has strong polarizing power. 
B) Lithium-ion is a good reducing agent. 
C) Lithium has a high density. 
D) Lithium has the most negative standard potential of all the elements. 
E) Li+ has a small radius.

Question 5

Which one of the following statements is false?

Accepted Answer

A) Fluorine can be produced by oxidation of a fluoride ion with chlorine. 
B) Bromine can be produced by oxidation of a bromide ion with chlorine. 
C) Fluorine is produced by electrolysis of an anhydrous mixture of KF and HF. 
D) The most stable form of fluorine at 25F1F1F1S1F1F1F10C and 1 atm is F2(g). 
A) Fluorine can be produced by oxidation of a fluoride ion with chlorine. 
B) Bromine can be produced by oxidation of a bromide ion with chlorine. 
C) Fluorine is produced by electrolysis of an anhydrous mixture of KF and HF. 
D) The most stable form of fluorine at 25F1F1F1S1F1F1F10C and 1 atm is F2(g).

Question 6

Which Group 13 element is most likely to have an oxidation number of +1 in its compounds?

Accepted Answer

The answer of Which Group 13 element is most likely...

Question 7

The formula of boric acid written as a Brønsted acid is

Accepted Answer

A) HB(OH)2.  
B) B(OH2)33+.  
C) B(OH)4F1F1F1S1F1F1F10.  
D) HB(OH)3.  
E) B(OH)3OH2.  
A) HB(OH)2.  
B) B(OH2)33+.  
C) B(OH)4F1F1F1S1F1F1F10.  
D) HB(OH)3.  
E) B(OH)3OH2.

Question 8

Beryllium and aluminum have similar properties because

Accepted Answer

A) both have similar electron affinities. 
B) both have almost identical ionization energies. 
C) both ions are highly polarizing due to their small size and high charge. 
D) both have virtually identical atomic radii. 
A) both have similar electron affinities. 
B) both have almost identical ionization energies. 
C) both ions are highly polarizing due to their small size and high charge. 
D) both have virtually identical atomic radii.

Question 9

Draw the structures of the phosphate,phosphite,and hypophosphite ions.

Accepted Answer

PO₄³F1F1F1S1^F1F1F10,H-

Question 10

Both H2O and H2S can participate in hydrogen bonding.True or false?

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is an interstitial carbide?

Accepted Answer

A) SrC2  
B) Al4C3  
C) CaC2  
D) K2C2  
E) W2C 
A) SrC2  
B) Al4C3  
C) CaC2  
D) K2C2  
E) W2C

Question 12

The mineral spondumene contains long,straight chain silicates involving the SiO32F1F1F1S1F1F1F10 unit.What is the shape of SiO32F1F1F1S1F1F1F10?

Accepted Answer

A) T-shaped 
B) Ttetrahedral 
C) Trigonal planar 
D) Trigonal pyramidal 
E) See-saw 
A) T-shaped 
B) Ttetrahedral 
C) Trigonal planar 
D) Trigonal pyramidal 
E) See-saw

Question 13

Nitric acid can never act as a reducing agent.True or false?

Accepted Answer

A) True 
 B)False

Question 14

What happens to the saline hydrides when they are dissolved in water?

Accepted Answer

They reduc

Question 15

Dinitrogen pentoxide is the anhydride of

Accepted Answer

A) nitrous acid. 
B) nitric acid. 
C) dinitrogen tetroxide. 
D) hydrazine. 
E) hydrazoic acid. 
A) nitrous acid. 
B) nitric acid. 
C) dinitrogen tetroxide. 
D) hydrazine. 
E) hydrazoic acid.

Question 16

Write the reaction for the disproportionation of nitrogen dioxide in water.

Accepted Answer

3NO₂(g)+ H₂O

Question 17

Solid sodium reduces nitrogen gas to form sodium nitride,Na3N.True or false?

Accepted Answer

A) True 
 B)False

Question 18

What is the function of aluminum in the thermite reaction?

Accepted Answer

It is the

Question 19

Magnesium nitride dissolves in water to produce

Accepted Answer

A) HNO3(aq)and MgO(s). 
B) N2(g)and MgO(s). 
C) NH3(g)and Mg(OH)2(s). 
D) Mg(NO3)2(aq). 
E) N2H4(l)and Mg(OH)2(s). 
A) HNO3(aq)and MgO(s). 
B) N2(g)and MgO(s). 
C) NH3(g)and Mg(OH)2(s). 
D) Mg(NO3)2(aq). 
E) N2H4(l)and Mg(OH)2(s).

Question 20

The most stable form of phosphorus at 25F1F1F1S1F1F1F10C and 1 atm is

Accepted Answer

A) P(s, red). 
B) P4O10(s). 
C) P2O3(s). 
D) P4(g). 
E) P(s, white). 
A) P(s, red). 
B) P4O10(s). 
C) P2O3(s). 
D) P4(g). 
E) P(s, white).

When XeF₄ acts as a fluorinating agent,

All the following acids have pK_as smaller than 2.0 except

What is the shape of sulfur dichloride?

What property of lithium makes the lithium-ion battery an excellent energy storage device?

Which one of the following statements is false?

Which Group 13 element is most likely to have an oxidation number of +1 in its compounds?

The formula of boric acid written as a Brønsted acid is

Beryllium and aluminum have similar properties because

Draw the structures of the phosphate,phosphite,and hypophosphite ions.

Both H₂O and H₂S can participate in hydrogen bonding.True or false?

Which of the following is an interstitial carbide?

The mineral spondumene contains long,straight chain silicates involving the SiO₃²^ unit.What is the shape of SiO₃²^?

Nitric acid can never act as a reducing agent.True or false?

What happens to the saline hydrides when they are dissolved in water?

Dinitrogen pentoxide is the anhydride of

Write the reaction for the disproportionation of nitrogen dioxide in water.

Solid sodium reduces nitrogen gas to form sodium nitride,Na₃N.True or false?

What is the function of aluminum in the thermite reaction?

Magnesium nitride dissolves in water to produce

The most stable form of phosphorus at 25C and 1 atm is

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Exam 16: The Elements: the Main Group Elements

When XeF4 acts as a fluorinating agent,

All the following acids have pKas smaller than 2.0 except

What is the shape of sulfur dichloride?

What property of lithium makes the lithium-ion battery an excellent energy storage device?

Which one of the following statements is false?

Which Group 13 element is most likely to have an oxidation number of +1 in its compounds?

The formula of boric acid written as a Brønsted acid is

Beryllium and aluminum have similar properties because

Draw the structures of the phosphate,phosphite,and hypophosphite ions.

Both H2O and H2S can participate in hydrogen bonding.True or false?

Which of the following is an interstitial carbide?

The mineral spondumene contains long,straight chain silicates involving the SiO32 unit.What is the shape of SiO32?

Nitric acid can never act as a reducing agent.True or false?

What happens to the saline hydrides when they are dissolved in water?

Dinitrogen pentoxide is the anhydride of

Write the reaction for the disproportionation of nitrogen dioxide in water.

Solid sodium reduces nitrogen gas to form sodium nitride,Na3N.True or false?

What is the function of aluminum in the thermite reaction?

Magnesium nitride dissolves in water to produce

The most stable form of phosphorus at 25C and 1 atm is

The Quantum World

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: the First Law

Thermodynamics: the Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

When XeF₄ acts as a fluorinating agent,

All the following acids have pK_as smaller than 2.0 except

Both H₂O and H₂S can participate in hydrogen bonding.True or false?

The mineral spondumene contains long,straight chain silicates involving the SiO₃²^ unit.What is the shape of SiO₃²^?

Solid sodium reduces nitrogen gas to form sodium nitride,Na₃N.True or false?