Question 1

How many equivalent resonance forms can be drawn for SO2 without expanding octet on the sulfur atom (sulfur is the central atom)?

Accepted Answer

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

Question 2

The central atom in __________ violates the octet rule.

Accepted Answer

A) NH3 
B) SeF2 
C) BF3 
D) AsF3 
E) CF4 
A) NH3 
B) SeF2 
C) BF3 
D) AsF3 
E) CF4

Question 3

A valid Lewis structure of __________ cannot be drawn without violating the octet rule.

Accepted Answer

A) ClF3 
B) PCl3 
C) SO3 
D) CCl4 
E) CO2 
A) ClF3 
B) PCl3 
C) SO3 
D) CCl4 
E) CO2

Question 4

In the nitrite ion (NO2-), __________.

Accepted Answer

A) both bonds are single bonds 
B) both bonds are double bonds 
C) one bond is a double bond and the other is a single bond 
D) both bonds are the same 
E) there are 20 valence electrons 
A) both bonds are single bonds 
B) both bonds are double bonds 
C) one bond is a double bond and the other is a single bond 
D) both bonds are the same 
E) there are 20 valence electrons

Question 5

Polyatomic ions with an odd number of electrons will __________ the octet rule.

Accepted Answer

The answer of Polyatomic ions with an odd number of...

Question 6

Give the electron configuration of Cu2+.

Accepted Answer

Question 7

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 8

A nonpolar bond will form between two __________ atoms of __________ electronegativity.

Accepted Answer

A) different, opposite 
B) identical, different 
C) different, different 
D) similar, different 
E) identical, equal 
A) different, opposite 
B) identical, different 
C) different, different 
D) similar, different 
E) identical, equal

Question 9

Which atom can accommodate an octet of electrons, but doesn't necessarily have to accommodate an octet?

Accepted Answer

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

Question 10

The only noble gas without eight valence electrons is __________.

Accepted Answer

A) Ar 
B) Ne 
C) He 
D) Kr 
E) All noble gases have eight valence electrons. 
A) Ar 
B) Ne 
C) He 
D) Kr 
E) All noble gases have eight valence electrons.

Question 11

For a given arrangement of ions, the lattice energy increases as ionic radius __________ and as ionic charge __________.

Accepted Answer

A) decreases, increases 
B) increases, decreases 
C) increases, increases 
D) decreases, decreases 
E) This cannot be predicted. 
A) decreases, increases 
B) increases, decreases 
C) increases, increases 
D) decreases, decreases 
E) This cannot be predicted.

Question 12

Which energy change corresponds to the electron affinity of fluorine?

Accepted Answer

A) 2 
B) 5 
C) 4 
D) 1 
E) 6 
A) 2 
B) 5 
C) 4 
D) 1 
E) 6

Question 13

The ion ICI4- has __________ valence electrons.

Accepted Answer

A) 34 
B) 35 
C) 36 
D) 28 
E) 8 
A) 34 
B) 35 
C) 36 
D) 28 
E) 8

Question 14

The greater the lattice energy, the greater the charges on the participatory ions and the smaller their radii.

Accepted Answer

A) True 
 B)False

Question 15

The strength of a covalent bond is measured by its __________.

Accepted Answer

The answer of The strength of a covalent bond is...

Question 16

Lattice energy is __________.

Accepted Answer

A) the energy required to convert a mole of ionic solid into its constituent ions in the gas phase 
B) the energy given off when gaseous ions combine to form one mole of an ionic solid 
C) the energy required to produce one mole of an ionic compound from its constituent elements in their standard states 
D) the sum of ionization energies of the components in an ionic solid 
E) the sum of electron affinities of the components in an ionic solid 
A) the energy required to convert a mole of ionic solid into its constituent ions in the gas phase 
B) the energy given off when gaseous ions combine to form one mole of an ionic solid 
C) the energy required to produce one mole of an ionic compound from its constituent elements in their standard states 
D) the sum of ionization energies of the components in an ionic solid 
E) the sum of electron affinities of the components in an ionic solid

Question 17

Of the atoms below, __________ is the most electronegative.

Accepted Answer

A) Si 
B) Cl 
C) Rb 
D) Ca 
E) S 
A) Si 
B) Cl 
C) Rb 
D) Ca 
E) S

Question 18

The oxidation number of iron in Fe2O3 is __________.

Accepted Answer

A) -2 
B) +1 
C) +3 
D) +2 
E) -3 
A) -2 
B) +1 
C) +3 
D) +2 
E) -3

Question 19

In which of the ions do all X-O bonds (X indicates the central atom)have the same length?

Accepted Answer

A) none 
B) all 
C) (i)and (ii) 
D) (iii)and (v) 
E) (iii), (iv), and (v) 
A) none 
B) all 
C) (i)and (ii) 
D) (iii)and (v) 
E) (iii), (iv), and (v)

Question 20

There are __________ valence electrons in the Lewis structure of CH3OCH2CH3.

Accepted Answer

A) 18 
B) 20 
C) 26 
D) 32 
E) 36 
A) 18 
B) 20 
C) 26 
D) 32 
E) 36

Exam 8: Basic Concepts of Chemical Bonding

How many equivalent resonance forms can be drawn for SO2 without expanding octet on the sulfur atom (sulfur is the central atom)?

The central atom in __________ violates the octet rule.

A valid Lewis structure of __________ cannot be drawn without violating the octet rule.

In the nitrite ion (NO2-), __________.

Polyatomic ions with an odd number of electrons will __________ the octet rule.

Give the electron configuration of Cu2+.

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

A nonpolar bond will form between two __________ atoms of __________ electronegativity.

Which atom can accommodate an octet of electrons, but doesn't necessarily have to accommodate an octet?

The only noble gas without eight valence electrons is __________.

For a given arrangement of ions, the lattice energy increases as ionic radius __________ and as ionic charge __________.

Which energy change corresponds to the electron affinity of fluorine?

The ion ICI4- has __________ valence electrons.

The greater the lattice energy, the greater the charges on the participatory ions and the smaller their radii.

The strength of a covalent bond is measured by its __________.

Lattice energy is __________.

Of the atoms below, __________ is the most electronegative.

The oxidation number of iron in Fe2O3 is __________.

In which of the ions do all X-O bonds (X indicates the central atom)have the same length?

There are __________ valence electrons in the Lewis structure of CH3OCH2CH3.

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

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

How many equivalent resonance forms can be drawn for SO₂ without expanding octet on the sulfur atom (sulfur is the central atom)?

In the nitrite ion (NO₂^-), __________.

Give the electron configuration of Cu²⁺.

A nonpolar bond will form between two atoms of electronegativity.

For a given arrangement of ions, the lattice energy increases as ionic radius and as ionic charge .

The ion ICI₄^- has __________ valence electrons.

The oxidation number of iron in Fe₂O₃ is __________.

There are __________ valence electrons in the Lewis structure of CH₃OCH₂CH₃.