Question 1

How many dots does the Lewis dot symbol for oxygen have around it?

Accepted Answer

A) 4 
B) 2 
C) 6 
D) 3 
E) 7 
A) 4 
B) 2 
C) 6 
D) 3 
E) 7

Question 2

In the best Lewis structure for the fulminate ion,CNO-,what is the formal charge on the central nitrogen atom?

Accepted Answer

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

Question 3

Select the Lewis structure for XeO2F2 which correctly minimizes formal charges.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 4

Which of the following contains ionic bonding?

Accepted Answer

A) CO 
B) SrF2 
C) Al 
D) OCl2 
E) HCl 
A) CO 
B) SrF2 
C) Al 
D) OCl2 
E) HCl

Question 5

Ionic compounds tend to form between metals and nonmetals when electrons are transferred from an element with high ionization energy (metal)to an element with a low electron affinity (nonmetal).

Accepted Answer

A) True 
 B)False

Question 6

The formal charge on Cl in the structure shown for the perchlorate ion is _____.

Accepted Answer

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

Question 7

Which molecule has the largest dipole moment?

Accepted Answer

A) HF 
B) HI 
C) HBr 
D) HCl 
E) All of the molecules have the same dipole moment. 
A) HF 
B) HI 
C) HBr 
D) HCl 
E) All of the molecules have the same dipole moment.

Question 8

What formal charge resides on the carbon of CO32-?

Accepted Answer

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

Question 9

The number of resonance structures for the sulfur dioxide molecule that satisfy the octet rule is

Accepted Answer

A) 1. 
B) 2. 
C) 3. 
D) 4. 
E) none of these 
A) 1. 
B) 2. 
C) 3. 
D) 4. 
E) none of these

Question 10

The total number of bonding electrons in a molecule of formaldehyde (H2CO)is

Accepted Answer

A) 3. 
B) 4. 
C) 6. 
D) 8. 
E) 18. 
A) 3. 
B) 4. 
C) 6. 
D) 8. 
E) 18.

Question 11

The Lewis dot symbol consists of the symbol for the element surrounded by dot(s).What does the symbol represent?

Accepted Answer

A) Electron configuration 
B) Valence electrons 
C) Atomic number 
D) Atomic mass 
E) Nucleus and core electrons 
A) Electron configuration 
B) Valence electrons 
C) Atomic number 
D) Atomic mass 
E) Nucleus and core electrons

Question 12

What types of elements undergo covalent bonding?

Accepted Answer

A) a metal and a noble gas 
B) a nonmetal and a metal 
C) two nonmetals 
D) two Group 1A elements 
E) an actinide 
A) a metal and a noble gas 
B) a nonmetal and a metal 
C) two nonmetals 
D) two Group 1A elements 
E) an actinide

Question 13

Which of these choices is the best Lewis structure for ozone,O3?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 14

Only valence electrons are shown in the Lewis structure held together by covalent bonds.

Accepted Answer

A) True 
 B)False

Question 15

Which of these compounds is most likely to be covalent?

Accepted Answer

A) Rb2S 
B) SrCl2 
C) CS2 
D) CaO 
E) MgI2 
A) Rb2S 
B) SrCl2 
C) CS2 
D) CaO 
E) MgI2

Question 16

Which of these compounds is most likely to be covalent?

Accepted Answer

A) CsOH 
B) NF3 
C) Sr(NO3)2 
D) CaO 
E) LiF 
A) CsOH 
B) NF3 
C) Sr(NO3)2 
D) CaO 
E) LiF

Question 17

The Lewis dot symbol for the a lead atom is

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 18

Which of these compounds is most likely to be ionic?

Accepted Answer

A) GaAs 
B) SrBr2 
C) NO2 
D) CBr4 
E) H2O 
A) GaAs 
B) SrBr2 
C) NO2 
D) CBr4 
E) H2O

Question 19

Select the compound with the lowest (i.e.,least negative)lattice energy.

Accepted Answer

A) CsBr(s) 
B) NaCl(s) 
C) SrO(s) 
D) CaO(s) 
E) KBr(s) 
A) CsBr(s) 
B) NaCl(s) 
C) SrO(s) 
D) CaO(s) 
E) KBr(s)

Question 20

A single bond between two atoms represents ________ pair(s)of electrons.

Accepted Answer

The answer of A single bond between two atoms represents...

Exam 8: Chemical Bonding I Basic Concepts

How many dots does the Lewis dot symbol for oxygen have around it?

In the best Lewis structure for the fulminate ion,CNO-,what is the formal charge on the central nitrogen atom?

Select the Lewis structure for XeO2F2 which correctly minimizes formal charges.

Which of the following contains ionic bonding?

Ionic compounds tend to form between metals and nonmetals when electrons are transferred from an element with high ionization energy (metal)to an element with a low electron affinity (nonmetal).

The formal charge on Cl in the structure shown for the perchlorate ion is _____.

Which molecule has the largest dipole moment?

What formal charge resides on the carbon of CO32-?

The number of resonance structures for the sulfur dioxide molecule that satisfy the octet rule is

The total number of bonding electrons in a molecule of formaldehyde (H2CO)is

The Lewis dot symbol consists of the symbol for the element surrounded by dot(s).What does the symbol represent?

What types of elements undergo covalent bonding?

Which of these choices is the best Lewis structure for ozone,O3?

Only valence electrons are shown in the Lewis structure held together by covalent bonds.

Which of these compounds is most likely to be covalent?

Which of these compounds is most likely to be covalent?

The Lewis dot symbol for the a lead atom is

Which of these compounds is most likely to be ionic?

Select the compound with the lowest (i.e.,least negative)lattice energy.

A single bond between two atoms represents ________ pair(s)of electrons.

Chemistry: the Central Science

Atoms Molecules and Ions

Stoichiometry Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding Ii Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

In the best Lewis structure for the fulminate ion,CNO^-,what is the formal charge on the central nitrogen atom?

Select the Lewis structure for XeO₂F₂ which correctly minimizes formal charges.

What formal charge resides on the carbon of CO₃^2-?

The total number of bonding electrons in a molecule of formaldehyde (H₂CO)is

Which of these choices is the best Lewis structure for ozone,O₃?