Question 1

What is the molecular shape of ClO3F as predicted by the VSEPR theory?

Accepted Answer

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

Question 2

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90 $\degree$ bond angle in it. (In each case except water, the central atom is the first one in the formula.)

Accepted Answer

A)  AlCl4¯ 
B)  NH3 
C)  PCl5 
D)  CO2 
E)  H2O 
A)  AlCl4¯ 
B)  NH3 
C)  PCl5 
D)  CO2 
E)  H2O

Question 3

Select the correct Lewis structure for TeBr2.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 4

All possible resonance structures contribute equally to the resonance hybrid.

Accepted Answer

A) True 
 B)False

Question 5

How many resonance structures are possible for NO3¯?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 6

Draw Lewis structures which obey the octet rule, for the following atoms, molecules and ions, showing all valence electrons. Central atoms are shown in bold.
A) NH3
b. O3 (Hint: O3 is not cyclic)
C) HCN
D) SO3

Accepted Answer

Question 7

In which one of the following is the best Lewis structure a resonance structure?

Accepted Answer

A)  SO3 
B)  BF3 
C)  I3¯ 
D)  SCO (C = central atom) 
E)  SO32¯ 
A)  SO3 
B)  BF3 
C)  I3¯ 
D)  SCO (C = central atom) 
E)  SO32¯

Question 8

A molecule which contains polar bonds will always have a dipole moment.

Accepted Answer

A) True 
 B)False

What is the molecular shape of ClO₃F as predicted by the VSEPR theory?

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90 $\degree$ bond angle in it. (In each case except water, the central atom is the first one in the formula.)

Select the correct Lewis structure for TeBr₂.

All possible resonance structures contribute equally to the resonance hybrid.

How many resonance structures are possible for NO₃^¯?

Draw Lewis structures which obey the octet rule, for the following atoms, molecules and ions, showing all valence electrons. Central atoms are shown in bold. A) NH₃b. O₃ (Hint: O₃ is not cyclic) C) HCN D) SO₃

In which one of the following is the best Lewis structure a resonance structure?

A molecule which contains polar bonds will always have a dipole moment.

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

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

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

Exam 10: The Shapes of Molecules

What is the molecular shape of ClO3F as predicted by the VSEPR theory?

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90 °\degree° bond angle in it. (In each case except water, the central atom is the first one in the formula.)

Select the correct Lewis structure for TeBr2.

All possible resonance structures contribute equally to the resonance hybrid.

How many resonance structures are possible for NO3¯?

Draw Lewis structures which obey the octet rule, for the following atoms, molecules and ions, showing all valence electrons. Central atoms are shown in bold. A) NH3 b. O3 (Hint: O3 is not cyclic) C) HCN D) SO3

In which one of the following is the best Lewis structure a resonance structure?

A molecule which contains polar bonds will always have a dipole moment.

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

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

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

What is the molecular shape of ClO₃F as predicted by the VSEPR theory?

Use VSEPR theory to decide which one of the following molecules and ions will definitely have at least one 90 $\degree$ bond angle in it. (In each case except water, the central atom is the first one in the formula.)

Select the correct Lewis structure for TeBr₂.

How many resonance structures are possible for NO₃^¯?

Draw Lewis structures which obey the octet rule, for the following atoms, molecules and ions, showing all valence electrons. Central atoms are shown in bold. A) NH₃b. O₃ (Hint: O₃ is not cyclic) C) HCN D) SO₃