Question 1

As the number of covalent bonds between two atoms increases,the distance between the atoms ________ and the strength of the bond between them ________.

Accepted Answer

A) increases, increases 
B) decreases, decreases 
C) increases, decreases 
D) decreases, increases 
E) is unpredictable, is unpredictable 
A) increases, increases 
B) decreases, decreases 
C) increases, decreases 
D) decreases, increases 
E) is unpredictable, is unpredictable

Question 2

The formal charge on carbon in the molecule below is ________.

Accepted Answer

A) 0 
B) +1 
C) +2 
D) +3 
E) -1 
A) 0 
B) +1 
C) +2 
D) +3 
E) -1

Question 3

The formula of palladium (IV)sulfide is ________.

Accepted Answer

A) Pd2S4 
B) PdS4 
C) Pd4S 
D) PdS2 
E) Pd2S2 
A) Pd2S4 
B) PdS4 
C) Pd4S 
D) PdS2 
E) Pd2S2

Question 4

In the molecule below,which atom has the largest partial negative charge?
Cl
∣
F- C -Br
∣
I

Accepted Answer

A) Cl 
B) F 
C) Br 
D) I 
E) C 
A) Cl 
B) F 
C) Br 
D) I 
E) C

Question 5

A triple bond consists of ________ pairs of electrons shared between two atoms.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 6 
A) 1 
B) 2 
C) 3 
D) 4 
E) 6

Question 6

A double bond consists of ________ pairs of electrons shared between two atoms.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 6 
A) 1 
B) 2 
C) 3 
D) 4 
E) 6

Question 7

The most electronegative atom of the ones listed below is ________.

Accepted Answer

A) B 
B) Al 
C) Ga 
D) In 
E) Tl 
A) B 
B) Al 
C) Ga 
D) In 
E) Tl

Question 8

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 9

The ________ ion has a noble gas electron configuration.

Accepted Answer

A) Cl- 
B) F2- 
C) F 
D) S2+ 
E) O- 
A) Cl- 
B) F2- 
C) F 
D) S2+ 
E) O-

Question 10

Which energy change corresponds to the first ionization energy of potassium?

Accepted Answer

A) 2 
B) 5 
C) 4 
D) 3 
E) 6 
A) 2 
B) 5 
C) 4 
D) 3 
E) 6

Question 11

The central atom in ________ does not violate the octet rule.

Accepted Answer

A) SF4 
B) KrF2 
C) CF4 
D) XeF4 
E) ICl4- 
A) SF4 
B) KrF2 
C) CF4 
D) XeF4 
E) ICl4-

Question 12

Of the following,________ cannot accommodate more than an octet of electrons.

Accepted Answer

A) Ni 
B) Sc 
C) Be 
D) Os 
E) Sb 
A) Ni 
B) Sc 
C) Be 
D) Os 
E) Sb

Question 13

Based on the octet rule,iodine most likely forms an ________ ion.

Accepted Answer

A) I2+ 
B) I4+ 
C) I4- 
D) I+ 
E) I- 
A) I2+ 
B) I4+ 
C) I4- 
D) I+ 
E) I-

Question 14

What is the principal quantum number of the last shell for the element barium?

Accepted Answer

A) 5 
B) 4 
C) 3 
D) 6 
E) 2 
A) 5 
B) 4 
C) 3 
D) 6 
E) 2

Question 15

A ________ covalent bond between the same two atoms is the longest.

Accepted Answer

A) single 
B) double 
C) triple 
D) strong 
E) They are all the same length. 
A) single 
B) double 
C) triple 
D) strong 
E) They are all the same length.

Question 16

The Lewis structure of AsH3 shows ________ nonbonding electron pair(s)on As.

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) This cannot be determined from the data given. 
A) 0 
B) 1 
C) 2 
D) 3 
E) This cannot be determined from the data given.

Question 17

If the bonds in the reactants of a reaction are weaker than the bonds in the product,the reaction is ________.

Accepted Answer

The answer of If the bonds in the reactants of...

Question 18

Of the atoms below,________ is the most electronegative.

Accepted Answer

A) C 
B) Si 
C) Ge 
D) B 
E) Al 
A) C 
B) Si 
C) Ge 
D) B 
E) Al

Question 19

Which two elements in period 2 form compounds that can violate the octet rule?

Accepted Answer

The answer of Which two elements in period 2 form...

Question 20

The ________ ion has a noble gas electron configuration.

Accepted Answer

A) Be2+ 
B) Li2+ 
C) Li 
D) Mg2- 
E) Al2+ 
A) Be2+ 
B) Li2+ 
C) Li 
D) Mg2- 
E) Al2+

Exam 8: Basic Concepts of Chemical Bonding

As the number of covalent bonds between two atoms increases,the distance between the atoms ________ and the strength of the bond between them ________.

The formal charge on carbon in the molecule below is ________.

The formula of palladium (IV)sulfide is ________.

In the molecule below,which atom has the largest partial negative charge? Cl ∣ F- C -Br ∣ I

A triple bond consists of ________ pairs of electrons shared between two atoms.

A double bond consists of ________ pairs of electrons shared between two atoms.

The most electronegative atom of the ones listed below is ________.

The oxidation number of iron in Fe2O3 is ________.

The ________ ion has a noble gas electron configuration.

Which energy change corresponds to the first ionization energy of potassium?

The central atom in ________ does not violate the octet rule.

Of the following,________ cannot accommodate more than an octet of electrons.

Based on the octet rule,iodine most likely forms an ________ ion.

What is the principal quantum number of the last shell for the element barium?

A ________ covalent bond between the same two atoms is the longest.

The Lewis structure of AsH3 shows ________ nonbonding electron pair(s)on As.

If the bonds in the reactants of a reaction are weaker than the bonds in the product,the reaction is ________.

Of the atoms below,________ is the most electronegative.

Which two elements in period 2 form compounds that can violate the octet rule?

The ________ ion has a noble gas electron configuration.

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

As the number of covalent bonds between two atoms increases,the distance between the atoms and the strength of the bond between them .

The oxidation number of iron in Fe₂O₃ is ________.

The Lewis structure of AsH₃ shows ________ nonbonding electron pair(s)on As.