Question 1

Which of the following is the correct charge for a bromine anion?

Accepted Answer

A)  1+ 
B)  1 − 
C)  0 
D)  2 − 
A)  1+ 
B)  1 − 
C)  0 
D)  2 −

Question 2

Which hybridization best characterizes the C atom involved in a CH4 molecule?

Accepted Answer

A)  sp 
B)  sp2 
C)  sp3 
D)  sp4 
A)  sp 
B)  sp2 
C)  sp3 
D)  sp4

Question 3

Which of the following molecules is most polar?

Accepted Answer

A)  NaCl 
B)  C2H6 
C)  HF 
D)  H2O 
A)  NaCl 
B)  C2H6 
C)  HF 
D)  H2O

Question 4

Alkali metals tend to form cations that are smaller than the neutral metal atom.

Accepted Answer

A) True 
 B)False

Question 5

The preferred oxidation state of Ca2+ is described by which electron configuration:

Accepted Answer

A)  1s22s22p63s23p6 
B)  1s22s22p63s23p64s2 
C)  1s22s22p63s23p63d10 
D)  1s22s22p6 
A)  1s22s22p63s23p6 
B)  1s22s22p63s23p64s2 
C)  1s22s22p63s23p63d10 
D)  1s22s22p6

Question 6

Covalent bonds involve:

Accepted Answer

A)  mostly alkali metal-halide interactions 
B)  the transport of electrons from one atom to another 
C)  a cationic re-arrangement of atoms 
D)  a significant electron density between two nuclei 
A)  mostly alkali metal-halide interactions 
B)  the transport of electrons from one atom to another 
C)  a cationic re-arrangement of atoms 
D)  a significant electron density between two nuclei

Question 7

Draw the Lewis Dot diagram of nitrate. How many resonance states are possible?

Accepted Answer

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

Question 8

Coulomb's Law states that as the charge on the cation and anion decreases, the force (and potential energy) of the system:

Accepted Answer

A)  increases 
B)  decreases 
C)  remains the same 
D)  becomes quantum mechanically unstable 
A)  increases 
B)  decreases 
C)  remains the same 
D)  becomes quantum mechanically unstable

Question 9

Of the following substances which is most reactive?

Accepted Answer

A)  SiO2 
B)  Sr(NO3)2 
C)  Cl2 
D)  glucose 
A)  SiO2 
B)  Sr(NO3)2 
C)  Cl2 
D)  glucose

Question 10

What is the correct electron configuration of the calcium cation?

Accepted Answer

A)  1s22s22p63s23p64s1 
B)  1s22s22p63s13p64s2 
C)  1s22s22p63s23p6 
D)  1s22s22p63s23p63d10 
A)  1s22s22p63s23p64s1 
B)  1s22s22p63s13p64s2 
C)  1s22s22p63s23p6 
D)  1s22s22p63s23p63d10

Question 11

Consider the formation of SF6. Using VSEPR, which molecule shape best describes the shape of the molecule?

Accepted Answer

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

Question 12

An ionic bond is formed by the electrostatic attraction of oppositely charged ions.

Accepted Answer

A) True 
 B)False

Question 13

In resonance structures, the positions of all electrons are identical; only the positions of the atoms are different.

Accepted Answer

A) True 
 B)False

Question 14

Large jumps in ionization energy tend to occur whenever the removal of that electron disrupts an electron configuration ending in:

Accepted Answer

A)  ns2 
B)  ns1 
C)  np6 
D)  np4 
A)  ns2 
B)  ns1 
C)  np6 
D)  np4

Question 15

The assignment of electrons in Lewis Dot diagrams is limited to:

Accepted Answer

A)  all electrons 
B)  valence electrons 
C)  the "d" sub-orbital 
D)  only those in the first group 
A)  all electrons 
B)  valence electrons 
C)  the "d" sub-orbital 
D)  only those in the first group

Question 16

CFCs are destructive because they undergo photo-catalyzed reactions that destroy O2.

Accepted Answer

A) True 
 B)False

Question 17

In assembling a Lewis Dot diagram of NO3 − , there are ____ total electrons to use in the model.

Accepted Answer

A)  23 
B)  24 
C)  27 
D)  20 
A)  23 
B)  24 
C)  27 
D)  20

Question 18

The aluminum cation has a correct charge of:

Accepted Answer

A)  3+ 
B)  2+ 
C)  1 − 
D)  1+ 
A)  3+ 
B)  2+ 
C)  1 − 
D)  1+

Question 19

Which of the following atoms is likely to be involved in a covalent bond?

Accepted Answer

A)  Sr 
B)  K 
C)  C 
D)  Ca 
A)  Sr 
B)  K 
C)  C 
D)  Ca

Question 20

If the combined radii of each pair is assumed equal, which pair of atoms releases the most energy during formation of an ion pair?

Accepted Answer

A)  Na and Br 
B)  Al and S 
C)  Rb and F 
D)  K and O 
A)  Na and Br 
B)  Al and S 
C)  Rb and F 
D)  K and O

Which of the following is the correct charge for a bromine anion?

Which hybridization best characterizes the C atom involved in a CH₄ molecule?

Which of the following molecules is most polar?

Alkali metals tend to form cations that are smaller than the neutral metal atom.

The preferred oxidation state of Ca²⁺ is described by which electron configuration:

Covalent bonds involve:

Draw the Lewis Dot diagram of nitrate. How many resonance states are possible?

Coulomb's Law states that as the charge on the cation and anion decreases, the force (and potential energy) of the system:

Of the following substances which is most reactive?

What is the correct electron configuration of the calcium cation?

Consider the formation of SF₆. Using VSEPR, which molecule shape best describes the shape of the molecule?

An ionic bond is formed by the electrostatic attraction of oppositely charged ions.

In resonance structures, the positions of all electrons are identical; only the positions of the atoms are different.

Large jumps in ionization energy tend to occur whenever the removal of that electron disrupts an electron configuration ending in:

The assignment of electrons in Lewis Dot diagrams is limited to:

CFCs are destructive because they undergo photo-catalyzed reactions that destroy O₂.

In assembling a Lewis Dot diagram of NO₃⁻, there are ____ total electrons to use in the model.

The aluminum cation has a correct charge of:

Which of the following atoms is likely to be involved in a covalent bond?

If the combined radii of each pair is assumed equal, which pair of atoms releases the most energy during formation of an ion pair?

Introduction to Chemistry

Atoms and Molecules

Molecules Moles Chemical Equations

Stoichiometry

Gases

The Periodic Table and Atomic Structure

Molecules and Materials

Energy and Chemistry

Entropy and the Second Law of Thermodynamics

Chemical Kinetics

Chemical Equilibrium

Electrochemistry

Filters

Exam 7: Chemical Bonding and Molecular Structure

Which of the following is the correct charge for a bromine anion?

Which hybridization best characterizes the C atom involved in a CH4 molecule?

Which of the following molecules is most polar?

Alkali metals tend to form cations that are smaller than the neutral metal atom.

The preferred oxidation state of Ca2+ is described by which electron configuration:

Covalent bonds involve:

Draw the Lewis Dot diagram of nitrate. How many resonance states are possible?

Coulomb's Law states that as the charge on the cation and anion decreases, the force (and potential energy) of the system:

Of the following substances which is most reactive?

What is the correct electron configuration of the calcium cation?

Consider the formation of SF6. Using VSEPR, which molecule shape best describes the shape of the molecule?

An ionic bond is formed by the electrostatic attraction of oppositely charged ions.

In resonance structures, the positions of all electrons are identical; only the positions of the atoms are different.

Large jumps in ionization energy tend to occur whenever the removal of that electron disrupts an electron configuration ending in:

The assignment of electrons in Lewis Dot diagrams is limited to:

CFCs are destructive because they undergo photo-catalyzed reactions that destroy O2.

In assembling a Lewis Dot diagram of NO3 − , there are ____ total electrons to use in the model.

The aluminum cation has a correct charge of:

Which of the following atoms is likely to be involved in a covalent bond?

If the combined radii of each pair is assumed equal, which pair of atoms releases the most energy during formation of an ion pair?

Introduction to Chemistry

Atoms and Molecules

Molecules Moles Chemical Equations

Stoichiometry

Gases

The Periodic Table and Atomic Structure

Molecules and Materials

Energy and Chemistry

Entropy and the Second Law of Thermodynamics

Chemical Kinetics

Chemical Equilibrium

Electrochemistry

Filters

Which hybridization best characterizes the C atom involved in a CH₄ molecule?

The preferred oxidation state of Ca²⁺ is described by which electron configuration:

Consider the formation of SF₆. Using VSEPR, which molecule shape best describes the shape of the molecule?

CFCs are destructive because they undergo photo-catalyzed reactions that destroy O₂.

In assembling a Lewis Dot diagram of NO₃⁻, there are ____ total electrons to use in the model.