Question 1

Write the correctly balanced equation for the reaction between elemental iodine and sodium bromide.

Accepted Answer

I₂+ NaBr -

Question 2

Consider the following xenon compounds:
(i) XeF2 
(ii) XeF4 
(iii) XeO4 
(iv) XeOF4 
(v) XeO3 
Which of the compounds is(are) polar?

Accepted Answer

A)  (i) only 
B)  (iii) and (iv) 
C)  (iv) and (v) 
D)  (ii) and (iii) 
E)  (iv) only 
A)  (i) only 
B)  (iii) and (iv) 
C)  (iv) and (v) 
D)  (ii) and (iii) 
E)  (iv) only

Question 3

Glass is whereas quartz is .

Accepted Answer

A)  hard, soft 
B)  crystalline, amorphous 
C)  amorphous, crystalline 
D)  breakable, not breakable 
E)  pure SiO2, a mixture of SiO2 and carbonates 
A)  hard, soft 
B)  crystalline, amorphous 
C)  amorphous, crystalline 
D)  breakable, not breakable 
E)  pure SiO2, a mixture of SiO2 and carbonates

Question 4

SiO44- is the ion.

Accepted Answer

A)  silicate ion 
B)  siliconate ion 
C)  silicon tetroxide ion 
D)  thiosilicate ion 
E)  orthosilicate ion 
A)  silicate ion 
B)  siliconate ion 
C)  silicon tetroxide ion 
D)  thiosilicate ion 
E)  orthosilicate ion

Question 5

Which of the following equations correctly represents the combustion of hydrazine?

Accepted Answer

A)  N2H4 (l) + 2O2 (g) → 2NO2 (g) + 2 H2 (g) 
B)  N2H4 (l) + O2 (g) → N2 (g) + 2 H2 (g) + O2 (g) 
C)  N2H4 (l) + O2 (g) → N2 (g) + 2 H2O (g) 
D)  N2H4 (l) + O2 (g) →  NH3 (g) + HNO2 (g) 
E)  N2H4 (l) + O2 (g) →  2H2NO (g) 
A)  N2H4 (l) + 2O2 (g) → 2NO2 (g) + 2 H2 (g) 
B)  N2H4 (l) + O2 (g) → N2 (g) + 2 H2 (g) + O2 (g) 
C)  N2H4 (l) + O2 (g) → N2 (g) + 2 H2O (g) 
D)  N2H4 (l) + O2 (g) →  NH3 (g) + HNO2 (g) 
E)  N2H4 (l) + O2 (g) →  2H2NO (g)

Question 6

The electron- pair geometry and molecular geometry of XeFe2 are and _ , respectively.

Accepted Answer

A)  trigonal bipyramidal; bent 
B)  octahedral; bent 
C)  octahedral; linear 
D)  trigonal bipyramidal; bent. 
E)  trigonal bipyramidal; linear 
A)  trigonal bipyramidal; bent 
B)  octahedral; bent 
C)  octahedral; linear 
D)  trigonal bipyramidal; bent. 
E)  trigonal bipyramidal; linear

Question 7

The arrangement of oxygen atoms around a silicon atom in SiO44- is

Accepted Answer

A)  octahedral 
B)  trigonal pyramidal 
C)  linear 
D)  tetrahedral 
E)  square planar 
A)  octahedral 
B)  trigonal pyramidal 
C)  linear 
D)  tetrahedral 
E)  square planar

Question 8

The reaction between nitrogen dioxide and water is a

Accepted Answer

A)  neutralization 
B)  decomposition 
C)  combustion 
D)  disproportionation 
E)  replacement 
A)  neutralization 
B)  decomposition 
C)  combustion 
D)  disproportionation 
E)  replacement

Question 9

The careful, thermal decomposition of solid ammonium nitrate will yield .

Accepted Answer

A)  N2O 
B)  N2O3  
C)  N2O5  
D)  NO2  
E)  NO 
A)  N2O 
B)  N2O3  
C)  N2O5  
D)  NO2  
E)  NO

Question 10

Boric acid condenses to form tetraboric acid according to the equation

Accepted Answer

A)  2H3BO3 (s) →  HB2O2 (s) + 4H2O (g). 
B)  4H3BO3 (s) → HB4O8 (s) + 4H2O (g). 
C)  4H3BO3 (s) → H2B4O7 (s) + 5H2O (g). 
D)  4H3BO3 (s) → 2H2B2O7 (s) + 3H2O (g). 
E)  2H3BO3 (s) → H2B4O7 (s) + 3H2O (g). 
A)  2H3BO3 (s) →  HB2O2 (s) + 4H2O (g). 
B)  4H3BO3 (s) → HB4O8 (s) + 4H2O (g). 
C)  4H3BO3 (s) → H2B4O7 (s) + 5H2O (g). 
D)  4H3BO3 (s) → 2H2B2O7 (s) + 3H2O (g). 
E)  2H3BO3 (s) → H2B4O7 (s) + 3H2O (g).

Question 11

Calcium carbide is a solid source of acetylene.

Accepted Answer

A) True 
 B)False

Question 12

Silicones are

Accepted Answer

A)  flat sheets of silicon atoms. 
B)  three- dimensional covalent networks of silicon atoms. 
C)  three- dimensional covalent networks of SiO4 tetrahedra. 
D)  flat sheets of silicon and hydrogen atoms. 
E)  chains of alternating silicon and oxygen atoms with attached organic groups. 
A)  flat sheets of silicon atoms. 
B)  three- dimensional covalent networks of silicon atoms. 
C)  three- dimensional covalent networks of SiO4 tetrahedra. 
D)  flat sheets of silicon and hydrogen atoms. 
E)  chains of alternating silicon and oxygen atoms with attached organic groups.

Question 13

Metal oxides are typically while nonmetal oxides are typically _.

Accepted Answer

A)  amphoteric, acidic 
B)  basic, acidic 
C)  amphoteric, basic 
D)  basic, amphoteric 
E)  acidic, basic 
A)  amphoteric, acidic 
B)  basic, acidic 
C)  amphoteric, basic 
D)  basic, amphoteric 
E)  acidic, basic

Question 14

Which of the following statements is false?

Accepted Answer

A)  Ozone decomposes to O2 and O. 
B)  Ozone is an allotrope of oxygen. 
C)  Ozone is a better reducing agent than O2 (g). 
D)  Ozone oxidizes all of the common metals except gold and platinum. 
E)  Ozone is produced by passing electricity through dry O2 (g). 
A)  Ozone decomposes to O2 and O. 
B)  Ozone is an allotrope of oxygen. 
C)  Ozone is a better reducing agent than O2 (g). 
D)  Ozone oxidizes all of the common metals except gold and platinum. 
E)  Ozone is produced by passing electricity through dry O2 (g).

Question 15

Of the following substances, is both a strong acid and a strong oxidizing agent.

Accepted Answer

A)  HF 
B)  H2SO4  
C)  H3PO4  
D)  HCl 
E)  HNO3 
A)  HF 
B)  H2SO4  
C)  H3PO4  
D)  HCl 
E)  HNO3

Question 16

Chlorine can have a positive oxidation state

Accepted Answer

A)  if it combines with hydrogen. 
B)  if it combines with bromine or iodine. 
C)  if it combines with oxygen or fluorine. 
D)  if it combines with an alkali metal. 
E)  in its elemental form. 
A)  if it combines with hydrogen. 
B)  if it combines with bromine or iodine. 
C)  if it combines with oxygen or fluorine. 
D)  if it combines with an alkali metal. 
E)  in its elemental form.

Write the correctly balanced equation for the reaction between elemental iodine and sodium bromide.

Consider the following xenon compounds: (i) XeF₂ (ii) XeF₄ (iii) XeO₄ (iv) XeOF₄ (v) XeO₃ Which of the compounds is(are) polar?

Glass is whereas quartz is .

SiO₄⁴^-is the ion.

Which of the following equations correctly represents the combustion of hydrazine?

The electron- pair geometry and molecular geometry of XeFe₂are and _ , respectively.

The arrangement of oxygen atoms around a silicon atom in SiO₄⁴^-is

The reaction between nitrogen dioxide and water is a

The careful, thermal decomposition of solid ammonium nitrate will yield .

Boric acid condenses to form tetraboric acid according to the equation

Calcium carbide is a solid source of acetylene.

Silicones are

Metal oxides are typically while nonmetal oxides are typically _.

Which of the following statements is false?

Of the following substances, is both a strong acid and a strong oxidizing agent.

Chlorine can have a positive oxidation state

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

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Exam 22: Chemistry of the Nonmetals

Write the correctly balanced equation for the reaction between elemental iodine and sodium bromide.

Consider the following xenon compounds: (i) XeF2 (ii) XeF4 (iii) XeO4 (iv) XeOF4 (v) XeO3 Which of the compounds is(are) polar?

Glass is whereas quartz is .

SiO44- is the ion.

Which of the following equations correctly represents the combustion of hydrazine?

The electron- pair geometry and molecular geometry of XeFe2 are and _ , respectively.

The arrangement of oxygen atoms around a silicon atom in SiO44- is

The reaction between nitrogen dioxide and water is a

The careful, thermal decomposition of solid ammonium nitrate will yield .

Boric acid condenses to form tetraboric acid according to the equation

Calcium carbide is a solid source of acetylene.

Silicones are

Metal oxides are typically while nonmetal oxides are typically _.

Which of the following statements is false?

Of the following substances, is both a strong acid and a strong oxidizing agent.

Chlorine can have a positive oxidation state

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters

Consider the following xenon compounds: (i) XeF₂ (ii) XeF₄ (iii) XeO₄ (iv) XeOF₄ (v) XeO₃ Which of the compounds is(are) polar?

SiO₄⁴^-is the ion.

The electron- pair geometry and molecular geometry of XeFe₂are and _ , respectively.

The arrangement of oxygen atoms around a silicon atom in SiO₄⁴^-is