Question 1

Order the following ions according to their radii from largest to smallest: HF1F1F1S1F1F1F10,ClF1F1F1S1F1F1F10,FF1F1F1S1F1F1F10.

Accepted Answer

ClF1F1F1S1^F1F1F10 >

Question 2

Which is the correct formula for anhydrous Epsom salts?

Accepted Answer

A) Mg(OH)2  
B) MgCl2  
C) CaSO4  
D) CaCl2  
E) None of the above. 
A) Mg(OH)2  
B) MgCl2  
C) CaSO4  
D) CaCl2  
E) None of the above.

Question 3

Sulfur dioxide can act as both an oxidizing agent and a reducing agent; explain.

Accepted Answer

In sulfur dioxide,the oxidatio

Question 4

Silane is produced in the following reactions.
a.SiCl4 + LiAlH4 F1F1F1S1F1F1F10 SiH4 + LiAlCl4
b.Mg2Si + 4HCl F1F1F1S1F1F1F10 SiH4 + 2MgCl2
Classify each reaction as a redox or displacement reaction.

Accepted Answer

(a)displac

Question 5

Which of the following oxides is amphoteric?

Accepted Answer

A) NO2  
B) Sb2O3  
C) Bi2O3  
D) As4O6  
E) P2O5  
A) NO2  
B) Sb2O3  
C) Bi2O3  
D) As4O6  
E) P2O5

Question 6

Which of the following are good reducing agents? HNO3,PH3,HNO2,NCl3,NH3,NO

Accepted Answer

A) HNO3 and NO 
B) HNO2 and HNO3 
C) NCl3 and NH3 
D) NH3 and PH3 
E) NH3 only 
A) HNO3 and NO 
B) HNO2 and HNO3 
C) NCl3 and NH3 
D) NH3 and PH3 
E) NH3 only

Question 7

The formula of diborane is

Accepted Answer

A) BH3.  
B) B2H6.  
C) B2H4.  
D) B2H2.  
E) B2H. 
A) BH3.  
B) B2H6.  
C) B2H4.  
D) B2H2.  
E) B2H.

Question 8

The anhydride of phosphoric acid is produced by the reaction

Accepted Answer

A) H3PO4(aq)F1F1F1S1F1F1F10 HPO3(aq)+ H2O(l). 
B) 2H3PO4(l)F1F1F1S1F1F1F10 H4P2O7(l)+ H2O(l). 
C) P4(s)+ 3O2(g)F1F1F1S1F1F1F10 P4O6(s). 
D) P4(s)+ 5O2(g)F1F1F1S1F1F1F10 P4O10(s). 
E) P4(g)+ 3OHF1F1F1S1F1F1F10(aq)+ 3H2O(l)F1F1F1S1F1F1F10 3H2PO2F1F1F1S1F1F1F10(aq)+ PH3(g). 
A) H3PO4(aq)F1F1F1S1F1F1F10 HPO3(aq)+ H2O(l). 
B) 2H3PO4(l)F1F1F1S1F1F1F10 H4P2O7(l)+ H2O(l). 
C) P4(s)+ 3O2(g)F1F1F1S1F1F1F10 P4O6(s). 
D) P4(s)+ 5O2(g)F1F1F1S1F1F1F10 P4O10(s). 
E) P4(g)+ 3OHF1F1F1S1F1F1F10(aq)+ 3H2O(l)F1F1F1S1F1F1F10 3H2PO2F1F1F1S1F1F1F10(aq)+ PH3(g).

Question 9

The equation for the hydrometallurgical extraction of silver is

Accepted Answer

A) Ag+(aq)+ ClF1F1F1S1F1F1F10(aq)F1F1F1S1F1F1F10 AgCl(s). 
B) Ag+(aq)+ 2S2O32F1F1F1S1F1F1F10(aq)F1F1F1S1F1F1F10 Ag(S2O3)23F1F1F1S1F1F1F10(aq). 
C) Ag+(aq)+ 2CNF1F1F1S1F1F1F10(aq)F1F1F1S1F1F1F10 Ag(CN)2F1F1F1S1F1F1F10(aq). 
D) 2Ag(s)+ 2H+(aq)F1F1F1S1F1F1F10 Ag+(aq)+ H2(g). 
E) Ag+(aq)+ H2(g)F1F1F1S1F1F1F10 2Ag(s)+ 2H+(aq). 
A) Ag+(aq)+ ClF1F1F1S1F1F1F10(aq)F1F1F1S1F1F1F10 AgCl(s). 
B) Ag+(aq)+ 2S2O32F1F1F1S1F1F1F10(aq)F1F1F1S1F1F1F10 Ag(S2O3)23F1F1F1S1F1F1F10(aq). 
C) Ag+(aq)+ 2CNF1F1F1S1F1F1F10(aq)F1F1F1S1F1F1F10 Ag(CN)2F1F1F1S1F1F1F10(aq). 
D) 2Ag(s)+ 2H+(aq)F1F1F1S1F1F1F10 Ag+(aq)+ H2(g). 
E) Ag+(aq)+ H2(g)F1F1F1S1F1F1F10 2Ag(s)+ 2H+(aq).

Question 10

In the contact process for the production of sulfuric acid,sulfur is first burned in oxygen to produce SO2(g).The SO2(g)is then

Accepted Answer

A) reduced to H2S(g). 
B) dissolved in water to form oleum. 
C) dissolved in water to form H2SO4(aq). 
D) dissolved in water to form H2SO3(aq). 
E) oxidized to SO3(g). 
A) reduced to H2S(g). 
B) dissolved in water to form oleum. 
C) dissolved in water to form H2SO4(aq). 
D) dissolved in water to form H2SO3(aq). 
E) oxidized to SO3(g).

Question 11

Both ammonia and phosphine are soluble in water.Which is less soluble? Why?

Accepted Answer

PH₃ is less soluble b

Question 12

The gaseous halides can all be synthesized by oxidation of their ions.True or false?

Accepted Answer

A) True 
 B)False

Question 13

When metallic hydrides are heated,they

Accepted Answer

A) decompose explosively to yield metal oxides. 
B) liberate oxygen and hydrogen. 
C) liberate hydrogen. 
D) produce hydrogen ions. 
E) do not change because they are extremely stable. 
A) decompose explosively to yield metal oxides. 
B) liberate oxygen and hydrogen. 
C) liberate hydrogen. 
D) produce hydrogen ions. 
E) do not change because they are extremely stable.

Question 14

The role of magnesium in chlorophyll is

Accepted Answer

A) that of a hydrogenation catalyst. 
B) to keep the ring rigid. 
C) that of a reducing agent. 
D) that of an oxidizing agent. 
E) to react with water to produce hydrogen. 
A) that of a hydrogenation catalyst. 
B) to keep the ring rigid. 
C) that of a reducing agent. 
D) that of an oxidizing agent. 
E) to react with water to produce hydrogen.

Question 15

The anhydrous material with the common name "Epsom salts" has what chemical formula?

Accepted Answer

A) MgSO4  
B) Mg(OH)2  
C) CaSO4  
D) CaCl2  
E) MgCl2  
A) MgSO4  
B) Mg(OH)2  
C) CaSO4  
D) CaCl2  
E) MgCl2

Question 16

The reaction of potassium superoxide with water vapor produces

Accepted Answer

A) K2O(s). 
B) H2O2(l). 
C) KHCO3(s). 
D) O2(g). 
E) H2(g). 
A) K2O(s). 
B) H2O2(l). 
C) KHCO3(s). 
D) O2(g). 
E) H2(g).

Question 17

Which of the following does not involve CO acting as a reducing agent?

Accepted Answer

A) PbO(s)+ CO(g)F1F1F1S1F1F1F10 Pb(s)+ CO2(g). 
B) CO(g)+ H2O(g)F1F1F1S1F1F1F10 CO2(g)+ H2(g). 
C) 2CO(g)+ O2(g)F1F1F1S1F1F1F10 2CO2(g). 
D) Ni(s)+ 4CO(g)F1F1F1S1F1F1F10 Ni(CO)4(g). 
E) Fe2O3(s)+ 3CO(g)F1F1F1S1F1F1F10 2Fe(s)+ 3CO2(g). 
A) PbO(s)+ CO(g)F1F1F1S1F1F1F10 Pb(s)+ CO2(g). 
B) CO(g)+ H2O(g)F1F1F1S1F1F1F10 CO2(g)+ H2(g). 
C) 2CO(g)+ O2(g)F1F1F1S1F1F1F10 2CO2(g). 
D) Ni(s)+ 4CO(g)F1F1F1S1F1F1F10 Ni(CO)4(g). 
E) Fe2O3(s)+ 3CO(g)F1F1F1S1F1F1F10 2Fe(s)+ 3CO2(g).

Question 18

Phosphorus(V)oxide reacts with water to produce

Accepted Answer

A) H3PO2. 
B) H3PO4. 
C) HPO3. 
D) H3PO3. 
E) H3PO2F1F1F1S1F1F1F10. 
A) H3PO2. 
B) H3PO4. 
C) HPO3. 
D) H3PO3. 
E) H3PO2F1F1F1S1F1F1F10.

Question 19

All of the following react with water to form hydrogen and a hydroxide except

Accepted Answer

A) Mg. 
B) Na. 
C) Ca. 
D) K. 
E) Be. 
A) Mg. 
B) Na. 
C) Ca. 
D) K. 
E) Be.

Question 20

The nitrate ion can act as a reducing agent only in redox reactions.

Accepted Answer

A) True 
 B)False

Order the following ions according to their radii from largest to smallest: H^,Cl^,F^.

Which is the correct formula for anhydrous Epsom salts?

Sulfur dioxide can act as both an oxidizing agent and a reducing agent; explain.

Silane is produced in the following reactions. a.SiCl₄ + LiAlH₄  SiH₄ + LiAlCl₄ b.Mg₂Si + 4HCl  SiH₄ + 2MgCl₂ Classify each reaction as a redox or displacement reaction.

Which of the following oxides is amphoteric?

Which of the following are good reducing agents? HNO₃,PH₃,HNO₂,NCl₃,NH₃,NO

The formula of diborane is

The anhydride of phosphoric acid is produced by the reaction

The equation for the hydrometallurgical extraction of silver is

In the contact process for the production of sulfuric acid,sulfur is first burned in oxygen to produce SO₂(g).The SO₂(g)is then

Both ammonia and phosphine are soluble in water.Which is less soluble? Why?

The gaseous halides can all be synthesized by oxidation of their ions.True or false?

When metallic hydrides are heated,they

The role of magnesium in chlorophyll is

The anhydrous material with the common name "Epsom salts" has what chemical formula?

The reaction of potassium superoxide with water vapor produces

Which of the following does not involve CO acting as a reducing agent?

Phosphorus(V)oxide reacts with water to produce

All of the following react with water to form hydrogen and a hydroxide except

The nitrate ion can act as a reducing agent only in redox reactions.

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

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Exam 16: The Elements: the Main Group Elements

Order the following ions according to their radii from largest to smallest: H,Cl,F.

Which is the correct formula for anhydrous Epsom salts?

Sulfur dioxide can act as both an oxidizing agent and a reducing agent; explain.

Silane is produced in the following reactions. a.SiCl4 + LiAlH4  SiH4 + LiAlCl4 b.Mg2Si + 4HCl  SiH4 + 2MgCl2 Classify each reaction as a redox or displacement reaction.

Which of the following oxides is amphoteric?

Which of the following are good reducing agents? HNO3,PH3,HNO2,NCl3,NH3,NO

The formula of diborane is

The anhydride of phosphoric acid is produced by the reaction

The equation for the hydrometallurgical extraction of silver is

In the contact process for the production of sulfuric acid,sulfur is first burned in oxygen to produce SO2(g).The SO2(g)is then

Both ammonia and phosphine are soluble in water.Which is less soluble? Why?

The gaseous halides can all be synthesized by oxidation of their ions.True or false?

When metallic hydrides are heated,they

The role of magnesium in chlorophyll is

The anhydrous material with the common name "Epsom salts" has what chemical formula?

The reaction of potassium superoxide with water vapor produces

Which of the following does not involve CO acting as a reducing agent?

Phosphorus(V)oxide reacts with water to produce

All of the following react with water to form hydrogen and a hydroxide except

The nitrate ion can act as a reducing agent only in redox reactions.

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

Order the following ions according to their radii from largest to smallest: H^,Cl^,F^.

Silane is produced in the following reactions. a.SiCl₄ + LiAlH₄  SiH₄ + LiAlCl₄ b.Mg₂Si + 4HCl  SiH₄ + 2MgCl₂ Classify each reaction as a redox or displacement reaction.

Which of the following are good reducing agents? HNO₃,PH₃,HNO₂,NCl₃,NH₃,NO

In the contact process for the production of sulfuric acid,sulfur is first burned in oxygen to produce SO₂(g).The SO₂(g)is then