Question 1

The number of valence electrons found in an atom of a Group A element is equal to

Accepted Answer

A) its atomic number. 
B) its mass number. 
C) eight minus the group number. 
D) eight. 
E) its group number. 
A) its atomic number. 
B) its mass number. 
C) eight minus the group number. 
D) eight. 
E) its group number.

Question 2

The strongest interactions between molecules of iodine,   , are examples of

Accepted Answer

A)  ionic bonds. 
B)  covalent bonds. 
C)  hydrogen bonds. 
D)  dipole-dipole attractions. 
E)  dispersion forces. 
A)  ionic bonds. 
B)  covalent bonds. 
C)  hydrogen bonds. 
D)  dipole-dipole attractions. 
E)  dispersion forces.

Question 3

The name of   is

Accepted Answer

A)  sulfur(I) chloride. 
B)  silver(I) chloride. 
C)  gold(I) chloride. 
D)  silver(II) chloride. 
E)  silver chloride. 
A)  sulfur(I) chloride. 
B)  silver(I) chloride. 
C)  gold(I) chloride. 
D)  silver(II) chloride. 
E)  silver chloride.

Question 4

The strongest interactions between atoms of helium, He, are examples of

Accepted Answer

A) ionic bonds. 
B) covalent bonds. 
C) hydrogen bonds. 
D) dipole-dipole attractions. 
E) dispersion forces. 
A) ionic bonds. 
B) covalent bonds. 
C) hydrogen bonds. 
D) dipole-dipole attractions. 
E) dispersion forces.

Question 5

The compound   is named

Accepted Answer

A)  dimagnesium chloride. 
B)  magnesium chloride. 
C)  magnesium chlorine. 
D)  magnesium dichloride. 
E)  magnesium(II) chloride. 
A)  dimagnesium chloride. 
B)  magnesium chloride. 
C)  magnesium chlorine. 
D)  magnesium dichloride. 
E)  magnesium(II) chloride.

Question 6

The ammonia molecule,   is

Accepted Answer

A)  a nonpolar molecule with nonpolar bonds. 
B)  a polar molecule with ionic bonds. 
C)  a polar molecule with polar bonds. 
D)  a nonpolar molecule with polar bonds. 
E)  a polar molecule with nonpolar bonds. 
A)  a nonpolar molecule with nonpolar bonds. 
B)  a polar molecule with ionic bonds. 
C)  a polar molecule with polar bonds. 
D)  a nonpolar molecule with polar bonds. 
E)  a polar molecule with nonpolar bonds.

Question 7

Which of the following polyatomic ions has a positive charge?

Accepted Answer

A) hydroxide 
B) sulfate 
C) hydrogen carbonate 
D) nitrate 
E) ammonium 
A) hydroxide 
B) sulfate 
C) hydrogen carbonate 
D) nitrate 
E) ammonium

Question 8

The strongest interactions in the compound sodium fluoride, NaF, are examples of

Accepted Answer

A) ionic bonds. 
B) covalent bonds. 
C) hydrogen bonds. 
D) dipole-dipole attractions. 
E) dispersion forces. 
A) ionic bonds. 
B) covalent bonds. 
C) hydrogen bonds. 
D) dipole-dipole attractions. 
E) dispersion forces.

Question 9

The carbon tetrachloride molecule,   is

Accepted Answer

A)  a polar molecule with ionic bonds. 
B)  a polar molecule with nonpolar bonds. 
C)  a nonpolar molecule with nonpolar bonds. 
D)  a nonpolar molecule with polar bonds. 
E)  a polar molecule with polar bonds. 
A)  a polar molecule with ionic bonds. 
B)  a polar molecule with nonpolar bonds. 
C)  a nonpolar molecule with nonpolar bonds. 
D)  a nonpolar molecule with polar bonds. 
E)  a polar molecule with polar bonds.

Question 10

In a covalently bonded molecule, the number of electrons that an atom shares with others is usually equal to the number of electrons

Accepted Answer

A) in the atom. 
B) needed to give it a stable electron configuration. 
C) in its nucleus. 
D) in all the atoms. 
E) in its ion. 
A) in the atom. 
B) needed to give it a stable electron configuration. 
C) in its nucleus. 
D) in all the atoms. 
E) in its ion.

Question 11

What is the correct formula for iron(III) sulfide?

Accepted Answer

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

Question 12

What is the correct formula for the iron(II) ion?

Accepted Answer

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

Question 13

Which of the following elements has the lowest electronegativity?

Accepted Answer

A) N 
B) F 
C) O 
D) C 
E) Li 
A) N 
B) F 
C) O 
D) C 
E) Li

Question 14

What is the correct formula for the oxide ion?

Accepted Answer

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

Question 15

A polar covalent bond is found in which of these compounds?

Accepted Answer

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

Question 16

Hydrogen sulfide,   has a shape similar to

Accepted Answer

A)  carbon dioxide. 
B)  carbon tetrachloride. 
C)  water. 
D)  carbon monoxide. 
E)  hydrogen chloride. 
A)  carbon dioxide. 
B)  carbon tetrachloride. 
C)  water. 
D)  carbon monoxide. 
E)  hydrogen chloride.

Question 17

Which of the following substances contains a nonpolar covalent bond?

Accepted Answer

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

Question 18

A(n)________ is the smallest unit of two or more atoms held together by a covalent bond.

Accepted Answer

A) ionic compound 
B) unit 
C) nucleus 
D) molecule 
E) formula 
A) ionic compound 
B) unit 
C) nucleus 
D) molecule 
E) formula

Question 19

What is the formula of carbon tetraiodide?

Accepted Answer

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

Question 20

How many valence electrons are in the Lewis structure of

Accepted Answer

A)  6 
B)  0 
C)  32 
D)  8 
E)  82 
A)  6 
B)  0 
C)  32 
D)  8 
E)  82

Exam 6: Ionic and Molecular Compounds

The number of valence electrons found in an atom of a Group A element is equal to

The strongest interactions between molecules of iodine, , are examples of

The name of is

The strongest interactions between atoms of helium, He, are examples of

The compound is named

The ammonia molecule, is

Which of the following polyatomic ions has a positive charge?

The strongest interactions in the compound sodium fluoride, NaF, are examples of

The carbon tetrachloride molecule, is

In a covalently bonded molecule, the number of electrons that an atom shares with others is usually equal to the number of electrons

What is the correct formula for iron(III) sulfide?

What is the correct formula for the iron(II) ion?

Which of the following elements has the lowest electronegativity?

What is the correct formula for the oxide ion?

A polar covalent bond is found in which of these compounds?

Hydrogen sulfide, has a shape similar to

Which of the following substances contains a nonpolar covalent bond?

A(n)________ is the smallest unit of two or more atoms held together by a covalent bond.

What is the formula of carbon tetraiodide?

How many valence electrons are in the Lewis structure of

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