Question 1

What is the electron geometry if you have 4 electron groups around the center atom?

Accepted Answer

A) linear 
B) trigonal planar 
C) tetrahedral 
D) trigonal bipyramidal 
E) not enough information 
A) linear 
B) trigonal planar 
C) tetrahedral 
D) trigonal bipyramidal 
E) not enough information

Question 2

Chlorine has 8 valence electrons in the Lewis structure for KCl.

Accepted Answer

A) True 
 B)False

Question 3

How many valence electrons are in the nitrate ion?

Accepted Answer

A) 18 
B) 22 
C) 23 
D) 24 
E) 26 
A) 18 
B) 22 
C) 23 
D) 24 
E) 26

Question 4

Which term matches the definition: The ability of an element to attract electrons within a covalent bond?

Accepted Answer

A) coulombic attraction 
B) dipole moment 
C) polar covalent 
D) nonpolar covalent 
E) electronegativity 
A) coulombic attraction 
B) dipole moment 
C) polar covalent 
D) nonpolar covalent 
E) electronegativity

Question 5

The electron geometry and the molecular geometry of ammonia (NH3)are,respectively:

Accepted Answer

A) trigonal planar,bent. 
B) tetrahedral,tetrahedral. 
C) tetrahedral,trigonal pyramidal. 
D) tetrahedral,bent. 
E) none of the above 
A) trigonal planar,bent. 
B) tetrahedral,tetrahedral. 
C) tetrahedral,trigonal pyramidal. 
D) tetrahedral,bent. 
E) none of the above

Question 6

What is the molecular geometry of PH3?

Accepted Answer

A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information 
A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information

Question 7

Which one of the following molecules is NOT capable of having resonance structures?

Accepted Answer

A) SeO2 
B) H2O 
C) SO2 
D) O3 
E) none of the above 
A) SeO2 
B) H2O 
C) SO2 
D) O3 
E) none of the above

Question 8

The VSEPR theory predicts that the H-C-H angle in CH4 measures 120°.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements about Lewis structures is FALSE?

Accepted Answer

A) An octet is when an atom has 8 valence electrons. 
B) A duet is a stable electron configuration for helium. 
C) An ionic bond occurs when electrons are transferred. 
D) A covalent bond occurs when electrons are shared. 
E) All of the above statements are true. 
A) An octet is when an atom has 8 valence electrons. 
B) A duet is a stable electron configuration for helium. 
C) An ionic bond occurs when electrons are transferred. 
D) A covalent bond occurs when electrons are shared. 
E) All of the above statements are true.

Question 10

Which Lewis structure below correctly represents KCl?

Accepted Answer

A) K⁺ [   ]⁻ 
B) K⁺ [:   :]⁻ 
C) K :   : 
D) :   : :   : 
E) none of the above 
A) K⁺ [   ]⁻ 
B) K⁺ [:   :]⁻ 
C) K :   : 
D) :   : :   : 
E) none of the above

Question 11

The Lewis theory predicts that the formula for a compound of magnesium and sulfur is MgS2.

Accepted Answer

A) True 
 B)False

Question 12

What is the molecular geometry if you have a double bond,a single bond and 1 lone pair around the central atom?

Accepted Answer

A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information 
A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information

Question 13

When you have 4 electron groups and none of them are lone pairs,the molecular geometry is trigonal pyramidal.

Accepted Answer

A) True 
 B)False

Question 14

When you have 2 electron groups and none are lone pairs,the molecular geometry is linear.

Accepted Answer

A) True 
 B)False

Question 15

What is the correct Lewis structure for CO2?

Accepted Answer

A) :   -   -   : 
B) :   =   =   : 
C) :   = C=   : 
D) :   = C=   : 
E) none of the above 
A) :   -   -   : 
B) :   =   =   : 
C) :   = C=   : 
D) :   = C=   : 
E) none of the above

Question 16

The Lewis structure,[:   -   =   ] best represents:

Accepted Answer

A) NO2+ 
B) NO2- 
C) NO2 
D) both NO2+ and NO2- 
E) answers A,B,and C 
A) NO2+ 
B) NO2- 
C) NO2 
D) both NO2+ and NO2- 
E) answers A,B,and C

Question 17

The structure   is a proper representation of the bonding in the H2 molecule.

Accepted Answer

A) True 
 B)False

Question 18

The Lewis model predicts that the formula for a compound between fluorine and calcium is:

Accepted Answer

A) CaF 
B) Ca2F 
C) CaF2 
D) CaF3 
E) none of the above 
A) CaF 
B) Ca2F 
C) CaF2 
D) CaF3 
E) none of the above

Question 19

What is the electron geometry if you have 3 electron groups around the center atom?

Accepted Answer

A) linear 
B) trigonal planar 
C) tetrahedral 
D) trigonal bipyramidal 
E) not enough information 
A) linear 
B) trigonal planar 
C) tetrahedral 
D) trigonal bipyramidal 
E) not enough information

Question 20

What is the molecular geometry if you have 4 single bonds around the central atom?

Accepted Answer

A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information 
A) bent 
B) linear 
C) tetrahedral 
D) trigonal pyramidal 
E) not enough information

What is the electron geometry if you have 4 electron groups around the center atom?

Chlorine has 8 valence electrons in the Lewis structure for KCl.

How many valence electrons are in the nitrate ion?

Which term matches the definition: The ability of an element to attract electrons within a covalent bond?

The electron geometry and the molecular geometry of ammonia (NH₃)are,respectively:

What is the molecular geometry of PH₃?

Which one of the following molecules is NOT capable of having resonance structures?

The VSEPR theory predicts that the H-C-H angle in CH₄ measures 120°.

Which of the following statements about Lewis structures is FALSE?

Which Lewis structure below correctly represents KCl?

The Lewis theory predicts that the formula for a compound of magnesium and sulfur is MgS₂.

What is the molecular geometry if you have a double bond,a single bond and 1 lone pair around the central atom?

When you have 4 electron groups and none of them are lone pairs,the molecular geometry is trigonal pyramidal.

When you have 2 electron groups and none are lone pairs,the molecular geometry is linear.

What is the correct Lewis structure for CO₂?

The Lewis structure,[: - = ] best represents:

The structure is a proper representation of the bonding in the H₂ molecule.

The Lewis model predicts that the formula for a compound between fluorine and calcium is:

What is the electron geometry if you have 3 electron groups around the center atom?

What is the molecular geometry if you have 4 single bonds around the central atom?

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Exam 10: Chemical Bonding

What is the electron geometry if you have 4 electron groups around the center atom?

Chlorine has 8 valence electrons in the Lewis structure for KCl.

How many valence electrons are in the nitrate ion?

Which term matches the definition: The ability of an element to attract electrons within a covalent bond?

The electron geometry and the molecular geometry of ammonia (NH3)are,respectively:

What is the molecular geometry of PH3?

Which one of the following molecules is NOT capable of having resonance structures?

The VSEPR theory predicts that the H-C-H angle in CH4 measures 120°.

Which of the following statements about Lewis structures is FALSE?

Which Lewis structure below correctly represents KCl?

The Lewis theory predicts that the formula for a compound of magnesium and sulfur is MgS2.

What is the molecular geometry if you have a double bond,a single bond and 1 lone pair around the central atom?

When you have 4 electron groups and none of them are lone pairs,the molecular geometry is trigonal pyramidal.

When you have 2 electron groups and none are lone pairs,the molecular geometry is linear.

What is the correct Lewis structure for CO2?

The Lewis structure,[: - = ] best represents:

The structure is a proper representation of the bonding in the H2 molecule.

The Lewis model predicts that the formula for a compound between fluorine and calcium is:

What is the electron geometry if you have 3 electron groups around the center atom?

What is the molecular geometry if you have 4 single bonds around the central atom?

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

The electron geometry and the molecular geometry of ammonia (NH₃)are,respectively:

What is the molecular geometry of PH₃?

The VSEPR theory predicts that the H-C-H angle in CH₄ measures 120°.

The Lewis theory predicts that the formula for a compound of magnesium and sulfur is MgS₂.

What is the correct Lewis structure for CO₂?

The structure is a proper representation of the bonding in the H₂ molecule.