Question 1

In deciding whether a bond is polar or nonpolar,what has to be considered?

Accepted Answer

A) The electromagnetic field surrounding the molecule 
B) Whether a magnet will attract the bonded atoms 
C) The electronegativity difference between the atoms 
D) The number of lone pairs 
E) The number of bonds between the two atoms 
A) The electromagnetic field surrounding the molecule 
B) Whether a magnet will attract the bonded atoms 
C) The electronegativity difference between the atoms 
D) The number of lone pairs 
E) The number of bonds between the two atoms C

Question 2

Among the following bonds,which would be the least polar? Electronegativity values are:
Na = 0.9,O = 3.5,F = 4.0,Cl = 3.0,Br = 2.8,I = 2.5

Accepted Answer

A) Na-O 
B) Na-F 
C) Na-Cl 
D) Na-Br 
E) Na-I 
A) Na-O 
B) Na-F 
C) Na-Cl 
D) Na-Br 
E) Na-I E

Question 3

Which of these are both isoelectronic with noble gas atoms?

Accepted Answer

A) Fe2+ and S2- 
B) Sc3+ and Cl- 
C) Ca2+ and H+ 
D) Ag+ and P3- 
E) Fe3+ and Fe2+ 
A) Fe2+ and S2- 
B) Sc3+ and Cl- 
C) Ca2+ and H+ 
D) Ag+ and P3- 
E) Fe3+ and Fe2+ B

Question 4

How many electrons are in a single,double,and triple bond,respectively?

Accepted Answer

The answer of How many electrons are in a single,double,and...

Question 5

When a covalent bond forms,the atomic orbitals of the separated atoms:

Accepted Answer

A) repel one another 
B) change from s orbitals to p orbitals 
C) change from p, d, or f orbitals to s orbitals 
D) cease to exist because the electrons transfer out of the orbitals 
E) overlap 
A) repel one another 
B) change from s orbitals to p orbitals 
C) change from p, d, or f orbitals to s orbitals 
D) cease to exist because the electrons transfer out of the orbitals 
E) overlap

Question 6

How does a phosphorus atom achieve an octet of electrons?

Accepted Answer

A) By losing 5 electrons 
B) By losing 3 electrons 
C) By gaining 8 electrons 
D) By gaining 5 electrons 
E) By gaining 3 electrons 
A) By losing 5 electrons 
B) By losing 3 electrons 
C) By gaining 8 electrons 
D) By gaining 5 electrons 
E) By gaining 3 electrons

Question 7

Which of the following correctly describes a covalent bond?

Accepted Answer

A) The charge clouds of the 1s orbitals repel one another 
B) The charge density of the electrons is concentrated between the two nuclei 
C) The electron clouds do not overlap as much as in an ionic bond 
D) All the valence electrons go into the electron cloud of only one of the atoms 
E) There are no valence electrons 
A) The charge clouds of the 1s orbitals repel one another 
B) The charge density of the electrons is concentrated between the two nuclei 
C) The electron clouds do not overlap as much as in an ionic bond 
D) All the valence electrons go into the electron cloud of only one of the atoms 
E) There are no valence electrons

Question 8

Which of the following is the best classification for a bond in which bonding electrons are shared unequally?

Accepted Answer

A) Nonpolar covalent 
B) Polar covalent 
C) Electronegative 
D) Multiple 
E) Completely ionic 
A) Nonpolar covalent 
B) Polar covalent 
C) Electronegative 
D) Multiple 
E) Completely ionic

Question 9

Why does the stability of a noble gas electron configuration contribute to the formation of covalent bonds?

Accepted Answer

A) Ionic bonds are called electron transfer bonds and covalent bonds are called electron sharing bonds 
B) Noble gases are found in Group 8A/18 on the periodic table 
C) Electrons occur in pairs in covalent bonds 
D) Ionic crystals are held together by electrostatic forces and molecular compounds are not 
E) The tendency toward a complete octet of electrons in a bonded atom reflects the natural tendency for a system to move to the lowest energy state possible 
A) Ionic bonds are called electron transfer bonds and covalent bonds are called electron sharing bonds 
B) Noble gases are found in Group 8A/18 on the periodic table 
C) Electrons occur in pairs in covalent bonds 
D) Ionic crystals are held together by electrostatic forces and molecular compounds are not 
E) The tendency toward a complete octet of electrons in a bonded atom reflects the natural tendency for a system to move to the lowest energy state possible

Question 10

Which bond is completely nonpolar?

Accepted Answer

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

Question 11

Which of the following is another term for unshared electron pairs?

Accepted Answer

A) Covalent pairs 
B) Ionic pairs 
C) Valence pairs 
D) Lone pairs 
E) Bonding electron pairs 
A) Covalent pairs 
B) Ionic pairs 
C) Valence pairs 
D) Lone pairs 
E) Bonding electron pairs

Question 12

How many single,double,and triple bonds are in the following molecule?

Accepted Answer

The answer of How many single,double,and triple bonds are in...

Question 13

Which of the following has/have the electron configuration [Ne]3s23p6?
i.S2-
ii.Cl
iii.Ar
iv.K+
v.Ca2+

Accepted Answer

A) i only 
B) iv and v 
C) ii and iii 
D) i, iii, iv, and v 
E) All have the electron configuration [Ne]3s23p6 
A) i only 
B) iv and v 
C) ii and iii 
D) i, iii, iv, and v 
E) All have the electron configuration [Ne]3s23p6

Question 14

Which of the following is the best classification for a bond in which bonding electrons are shared equally?

Accepted Answer

A) Nonpolar 
B) Polar covalent 
C) Primarily ionic 
D) Very strongly polar covalent 
E) Slightly ionic 
A) Nonpolar 
B) Polar covalent 
C) Primarily ionic 
D) Very strongly polar covalent 
E) Slightly ionic

Question 15

Which of the following statements correctly describe ionic compounds?
i.They never contain covalent bonds
ii.They are formed when atoms share their valence electrons
iii.They are usually solids at room temperature
iv.They are generally gases at ice water temperature

Accepted Answer

A) iii only 
B) i and ii 
C) i and iii 
D) i and iv 
E) i, ii, and iii 
A) iii only 
B) i and ii 
C) i and iii 
D) i and iv 
E) i, ii, and iii

Question 16

Which of the following correctly describes the bonding in ionic,covalent,and metallic bonds?

Accepted Answer

The answer of Which of the following correctly describes the...

Question 17

Which element will act as the negative pole in each of the following bonds:

Accepted Answer

A) F in O-F and O in O-Cl 
B) O in O-F and O in O-Cl 
C) F in O-F and Cl in O-Cl 
D) O in O-F and Cl in O-Cl 
E) O, F, and Cl are all highly electronegative so there will be neither a positive nor a negative pole. 
A) F in O-F and O in O-Cl 
B) O in O-F and O in O-Cl 
C) F in O-F and Cl in O-Cl 
D) O in O-F and Cl in O-Cl 
E) O, F, and Cl are all highly electronegative so there will be neither a positive nor a negative pole.

Question 18

Examine the following model.   What type of bonding does this model represent?

Accepted Answer

A) Polar 
B) Nonpolar 
C) Ionic 
D) Covalent 
E) Metallic 
A) Polar 
B) Nonpolar 
C) Ionic 
D) Covalent 
E) Metallic

Question 19

Which of the following correctly describes a cation?

Accepted Answer

A) A positively charged ion 
B) An ion formed by the addition of electrons to the neutral atom 
C) An ion formed mostly by the nonmetals 
D) An ion that contains a greater number of electrons than protons 
E) An ion formed by elements on the right side of the periodic table 
A) A positively charged ion 
B) An ion formed by the addition of electrons to the neutral atom 
C) An ion formed mostly by the nonmetals 
D) An ion that contains a greater number of electrons than protons 
E) An ion formed by elements on the right side of the periodic table

Question 20

Given the following electronegativities: C = 2.5,N = 3.0,O = 3.5,F = 4.0,arrange the bonds according to decreasing polarity.

Accepted Answer

A) C-O > C-N > C-C > C-F 
B) C-F > C-C > C-N > C-O 
C) C-F > C-O > C-N > C-C 
D) C-C > C-N > C-O > C-F 
E) C-N > C-O > C-F > C-C 
A) C-O > C-N > C-C > C-F 
B) C-F > C-C > C-N > C-O 
C) C-F > C-O > C-N > C-C 
D) C-C > C-N > C-O > C-F 
E) C-N > C-O > C-F > C-C

Exam 12: Chemical Bonding

In deciding whether a bond is polar or nonpolar,what has to be considered?

Among the following bonds,which would be the least polar? Electronegativity values are: Na = 0.9,O = 3.5,F = 4.0,Cl = 3.0,Br = 2.8,I = 2.5

Which of these are both isoelectronic with noble gas atoms?

How many electrons are in a single,double,and triple bond,respectively?

When a covalent bond forms,the atomic orbitals of the separated atoms:

How does a phosphorus atom achieve an octet of electrons?

Which of the following correctly describes a covalent bond?

Which of the following is the best classification for a bond in which bonding electrons are shared unequally?

Why does the stability of a noble gas electron configuration contribute to the formation of covalent bonds?

Which bond is completely nonpolar?

Which of the following is another term for unshared electron pairs?

How many single,double,and triple bonds are in the following molecule?

Which of the following has/have the electron configuration [Ne]3s23p6? i.S2- ii.Cl iii.Ar iv.K+ v.Ca2+

Which of the following is the best classification for a bond in which bonding electrons are shared equally?

Which of the following statements correctly describe ionic compounds? i.They never contain covalent bonds ii.They are formed when atoms share their valence electrons iii.They are usually solids at room temperature iv.They are generally gases at ice water temperature

Which of the following correctly describes the bonding in ionic,covalent,and metallic bonds?

Which element will act as the negative pole in each of the following bonds:

Examine the following model. What type of bonding does this model represent?

Which of the following correctly describes a cation?

Given the following electronegativities: C = 2.5,N = 3.0,O = 3.5,F = 4.0,arrange the bonds according to decreasing polarity.

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: The Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Atomic Theory: The Quantum Model of the Atom

Structure and Shape

The Ideal Gas Law and Its Applications

Gases, Liquids, and Solids

Solutions

Acidbase Proton Transferreactions

Chemical Equilibrium

Oxidationreduction Electron Transferreactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Which of the following has/have the electron configuration [Ne]3s²3p⁶? i.S^2- ii.Cl iii.Ar iv.K⁺ v.Ca²⁺