Question 1

Complete the Lewis structure for the molecule:   This molecule has __________ single bonds and __________ multiple bonds.

Accepted Answer

A) 4,2 
B) 6,3 
C) 11,5 
D) 11,2 
E) 13,0 
A) 4,2 
B) 6,3 
C) 11,5 
D) 11,2 
E) 13,0

Question 2

Consider the following molecules.
I.BFS1U1B13S1U1B0
II.CHBrS1U1B13S1U1B0 (C is the central atom)
III.BrS1U1B12S1U1B0
IV.XeClS1U1B12S1U1B0
V.CO
VI.SFS1U1B14S1U1B0
Select the molecule(s)that fit the given statement.
-These molecules violate the octet rule.

Accepted Answer

A) I,II,IV 
B) I,III,IV,VI 
C) III,V,VI 
D) I,IV,VI 
E) I,II,IV,VI 
A) I,II,IV 
B) I,III,IV,VI 
C) III,V,VI 
D) I,IV,VI 
E) I,II,IV,VI

Question 3

Which of the following ionic compounds has the smallest lattice energy (i.e. ,the lattice energy least favorable to a stable lattice)?

Accepted Answer

A) LiF 
B) CsI 
C) NaCl 
D) BaO 
E) MgO 
A) LiF 
B) CsI 
C) NaCl 
D) BaO 
E) MgO

Question 4

The molecular structure of OF2 is

Accepted Answer

A) pyramidal 
B) none of these 
C) octahedral 
D) trigonal planar 
E) bent 
A) pyramidal 
B) none of these 
C) octahedral 
D) trigonal planar 
E) bent

Question 5

Which of the following molecules has a dipole moment?

Accepted Answer

A) CH4 
B) CCl4 
C) CO2 
D) SO2 
E) none of these 
A) CH4 
B) CCl4 
C) CO2 
D) SO2 
E) none of these

Question 6

A double bond occurs when two atoms share two pairs of electrons.

Accepted Answer

A) True 
 B)False

Complete the Lewis structure for the molecule: This molecule has single bonds and multiple bonds.

Consider the following molecules. I.BF₃ II.CHBr₃ (C is the central atom) III.Br₂ IV.XeCl₂ V.CO VI.SF₄ Select the molecule(s)that fit the given statement. -These molecules violate the octet rule.

Which of the following ionic compounds has the smallest lattice energy (i.e. ,the lattice energy least favorable to a stable lattice)?

The molecular structure of OF₂ is

Which of the following molecules has a dipole moment?

A double bond occurs when two atoms share two pairs of electrons.

Chemical Foundations

Atoms, molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Thermochemistry

Atomic Structure and Periodicity

Covalent Bonding: Orbitals

Liquids and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex Ion Equilibria

Spontaneity, entropy, and Free Energy

Electrochemistry

The Nucleus: a Chemists View

The Representative Elements

Transition Metals and Coordination Chemistry

Organic and Biological Molecules

Filters

Exam 8: Bonding: General Concepts

Complete the Lewis structure for the molecule: This molecule has __________ single bonds and __________ multiple bonds.

Consider the following molecules. I.BF3 II.CHBr3 (C is the central atom) III.Br2 IV.XeCl2 V.CO VI.SF4 Select the molecule(s)that fit the given statement. -These molecules violate the octet rule.

Which of the following ionic compounds has the smallest lattice energy (i.e. ,the lattice energy least favorable to a stable lattice)?

The molecular structure of OF2 is

Which of the following molecules has a dipole moment?

A double bond occurs when two atoms share two pairs of electrons.

Chemical Foundations

Atoms, molecules, and Ions

Stoichiometry

Chemical Reactions and Solutions Stoichiometry

Gases

Thermochemistry

Atomic Structure and Periodicity

Covalent Bonding: Orbitals

Liquids and Solids

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria

Solubility and Complex Ion Equilibria

Spontaneity, entropy, and Free Energy

Electrochemistry

The Nucleus: a Chemists View

The Representative Elements

Transition Metals and Coordination Chemistry

Organic and Biological Molecules

Filters

Complete the Lewis structure for the molecule: This molecule has single bonds and multiple bonds.

Consider the following molecules. I.BF₃ II.CHBr₃ (C is the central atom) III.Br₂ IV.XeCl₂ V.CO VI.SF₄ Select the molecule(s)that fit the given statement. -These molecules violate the octet rule.

The molecular structure of OF₂ is