Question 1

What is the maximum number of double bonds that a hydrogen atom can form?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 4 
A) 0 
B) 1 
C) 2 
D) 3 
E) 4

Question 2

Draw the Lewis structure of ICl2+.

Accepted Answer

Question 3

Using the table of bond dissociation energies,the ΔH for the following reaction is ________ kJ. 2HCl (g)+ F2 (g)→ 2HF (g)+ Cl2 (g)

Accepted Answer

A) -359 
B) -223 
C) 359 
D) 223 
E) 208 
A) -359 
B) -223 
C) 359 
D) 223 
E) 208

Question 4

Atoms surrounded by eight valence electrons tend to lose electrons.

Accepted Answer

A) True 
 B)False

Question 5

Bond enthalpy is ________.

Accepted Answer

A) always positive 
B) always negative 
C) sometimes positive, sometimes negative 
D) always zero 
E) unpredictable 
A) always positive 
B) always negative 
C) sometimes positive, sometimes negative 
D) always zero 
E) unpredictable

Question 6

Based on the octet rule,boron will most likely form a ________ ion.

Accepted Answer

A) B3- 
B) B+ 
C) B3+ 
D) B2+ 
E) B2- 
A) B3- 
B) B+ 
C) B3+ 
D) B2+ 
E) B2-

Question 7

As electronegativity difference increases,bond length will decrease.

Accepted Answer

A) True 
 B)False

Question 8

How many equivalent resonance structures can be drawn for the molecule of SO3 without having to violate the octet rule on the sulfur atom?

Accepted Answer

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

Question 9

In ionic bond formation,the lattice energy of ions ________ as the magnitude of the ion charges ________ and the radii ________.

Accepted Answer

A) increases, decrease, increase 
B) increases, increase, increase 
C) decreases, increase, increase 
D) increases, increase, decrease 
E) increases, decrease, decrease 
A) increases, decrease, increase 
B) increases, increase, increase 
C) decreases, increase, increase 
D) increases, increase, decrease 
E) increases, decrease, decrease

Question 10

The ability of an atom in a molecule to attract electrons is best quantified by the ________.

Accepted Answer

A) paramagnetism 
B) diamagnetism 
C) electronegativity 
D) electron charge-to-mass ratio 
E) first ionization potential 
A) paramagnetism 
B) diamagnetism 
C) electronegativity 
D) electron charge-to-mass ratio 
E) first ionization potential

Question 11

What is the electron configuration for the FeS1U1P13+S1S1P0 ion?

Accepted Answer

A) [Ar]4sS1U1P11S1S1P03dS1U1P16S1S1P0 
B) [Ar]4sS1U1P10S1S1P03dS1U1P17S1S1P0 
C) [Ar]4sS1U1P10S1S1P03dS1U1P15S1S1P0 
D) [Ar]4sS1U1P12S1S1P03dS1U1P19S1S1P0 
E) [Ne]3sS1U1P12S1S1P03pS1U1P110S1S1P0 
A) [Ar]4sS1U1P11S1S1P03dS1U1P16S1S1P0 
B) [Ar]4sS1U1P10S1S1P03dS1U1P17S1S1P0 
C) [Ar]4sS1U1P10S1S1P03dS1U1P15S1S1P0 
D) [Ar]4sS1U1P12S1S1P03dS1U1P19S1S1P0 
E) [Ne]3sS1U1P12S1S1P03pS1U1P110S1S1P0

Question 12

How many hydrogen atoms must bond to silicon to give it an octet of valence electrons?

Accepted Answer

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

Question 13

Electropositivity ________ from left to right within a period and ________ from top to bottom within a group.

Accepted Answer

A) decreases, increases 
B) increases, increases 
C) increases, decreases 
D) stays the same, increases 
E) increases, stays the same 
A) decreases, increases 
B) increases, increases 
C) increases, decreases 
D) stays the same, increases 
E) increases, stays the same

Question 14

What is the maximum number of double bonds that a carbon atom can form?

Accepted Answer

A) 4 
B) 1 
C) 0 
D) 2 
E) 3 
A) 4 
B) 1 
C) 0 
D) 2 
E) 3

Question 15

Of the atoms below,________ is the least electronegative.

Accepted Answer

A) B 
B) F 
C) C 
D) N 
E) O 
A) B 
B) F 
C) C 
D) N 
E) O

Question 16

Of the bonds C-C,C   C,and C≡C,the C-C bond is ________.

Accepted Answer

A) strongest/shortest 
B) strongest/longest 
C) weakest/longest 
D) weakest/shortest 
E) intermediate in both strength and length 
A) strongest/shortest 
B) strongest/longest 
C) weakest/longest 
D) weakest/shortest 
E) intermediate in both strength and length

Question 17

Which of the following bonds would be considered non-polar covalent?

Accepted Answer

A) N-H 
B) C-H 
C) O-H 
D) C-Cl 
E) C-O 
A) N-H 
B) C-H 
C) O-H 
D) C-Cl 
E) C-O

Question 18

Based on the octet rule,phosphorus most likely forms a ________ ion.

Accepted Answer

A) P3+ 
B) P3- 
C) P5+ 
D) P5- 
E) P+ 
A) P3+ 
B) P3- 
C) P5+ 
D) P5- 
E) P+

Question 19

The halogens,alkali metals,and alkaline earth metals have ________ valence electrons,respectively.

Accepted Answer

A) 7, 4, and 6 
B) 1, 5, and 7 
C) 8, 2, and 3 
D) 7, 1, and 2 
E) 2, 7, and 4 
A) 7, 4, and 6 
B) 1, 5, and 7 
C) 8, 2, and 3 
D) 7, 1, and 2 
E) 2, 7, and 4

Question 20

Using the noble gas shorthand notation,write the electron configuration for Fe2+.

Accepted Answer

Exam 8: Basic Concepts of Chemical Bonding

What is the maximum number of double bonds that a hydrogen atom can form?

Draw the Lewis structure of ICl2+.

Using the table of bond dissociation energies,the ΔH for the following reaction is ________ kJ. 2HCl (g)+ F2 (g)→ 2HF (g)+ Cl2 (g)

Atoms surrounded by eight valence electrons tend to lose electrons.

Bond enthalpy is ________.

Based on the octet rule,boron will most likely form a ________ ion.

As electronegativity difference increases,bond length will decrease.

How many equivalent resonance structures can be drawn for the molecule of SO3 without having to violate the octet rule on the sulfur atom?

In ionic bond formation,the lattice energy of ions ________ as the magnitude of the ion charges ________ and the radii ________.

The ability of an atom in a molecule to attract electrons is best quantified by the ________.

What is the electron configuration for the Fe3+ ion?

How many hydrogen atoms must bond to silicon to give it an octet of valence electrons?

Electropositivity ________ from left to right within a period and ________ from top to bottom within a group.

What is the maximum number of double bonds that a carbon atom can form?

Of the atoms below,________ is the least electronegative.

Of the bonds C-C,C C,and C≡C,the C-C bond is ________.

Which of the following bonds would be considered non-polar covalent?

Based on the octet rule,phosphorus most likely forms a ________ ion.

The halogens,alkali metals,and alkaline earth metals have ________ valence electrons,respectively.

Using the noble gas shorthand notation,write the electron configuration for Fe2+.

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

Draw the Lewis structure of ICl₂⁺.

Using the table of bond dissociation energies,the ΔH for the following reaction is ________ kJ. 2HCl (g)+ F₂ (g)→ 2HF (g)+ Cl₂ (g)

How many equivalent resonance structures can be drawn for the molecule of SO₃ without having to violate the octet rule on the sulfur atom?

In ionic bond formation,the lattice energy of ions as the magnitude of the ion charges and the radii .

What is the electron configuration for the Fe³⁺ ion?

Electropositivity from left to right within a period and from top to bottom within a group.

Using the noble gas shorthand notation,write the electron configuration for Fe²⁺.