Question 1

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

Accepted Answer

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

Question 2

Which of the following compounds contains an ionic bond?

Accepted Answer

A)  NH3 
B)  H₂O 
C)  CaO 
D)  H₂ 
E)  CH4 
A)  NH3 
B)  H₂O 
C)  CaO 
D)  H₂ 
E)  CH4

Question 3

Choose the best electron-dot structure for CH₂Cl₂.

Accepted Answer

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

Question 4

Match the correct name of the polyatomic ions with the formulas given.
-Ca

Accepted Answer

A) 1- 
B) 0 
C) 2- 
D) 3+ 
E) 2+
F)1+ 
A) 1- 
B) 0 
C) 2- 
D) 3+ 
E) 2+
F)1+

Question 5

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

Question 6

Match the correct name of the polyatomic ions with the formulas given.
-SO₃2-

Accepted Answer

A)  sulfate 
B)  nitrate 
C)  hydrogen carbonate 
D)  hydroxide 
E)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate. 
A)  sulfate 
B)  nitrate 
C)  hydrogen carbonate 
D)  hydroxide 
E)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate.

Question 7

Match the correct name of the polyatomic ions with the formulas given.
-HSO₄-

Accepted Answer

A)  sulfate 
B)  nitrate 
C)  hydrogen carbonate 
D)  hydroxide 
E)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate. 
A)  sulfate 
B)  nitrate 
C)  hydrogen carbonate 
D)  hydroxide 
E)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate.

Question 8

Identify each of the following molecules as polar or nonpolar.
-water

Accepted Answer

The answer of Identify each of the following molecules as...

Question 9

Which of the following compounds contains a polar covalent bond?

Accepted Answer

A)  NaF 
B)  HCl 
C)  Br₂ 
D)  MgO 
E)  O₂ 
A)  NaF 
B)  HCl 
C)  Br₂ 
D)  MgO 
E)  O₂

Question 10

The shape of the carbon tetrachloride molecule is

Accepted Answer

A)  linear. 
B)  square. 
C)  pyramidal. 
D)  tetrahedral. 
E)  octagonal. 
A)  linear. 
B)  square. 
C)  pyramidal. 
D)  tetrahedral. 
E)  octagonal.

Question 11

The name of Al2(SO₄)3 is

Accepted Answer

A)  aluminum(III) sulfate. 
B)  dialuminum trisulfate. 
C)  dialuminum sulfate. 
D)  dialuminum trisulfide. 
E)  aluminum sulfate. 
A)  aluminum(III) sulfate. 
B)  dialuminum trisulfate. 
C)  dialuminum sulfate. 
D)  dialuminum trisulfide. 
E)  aluminum sulfate.

Question 12

Identify each of the following compounds as covalent or ionic.
-sodium fluoride

Accepted Answer

The answer of Identify each of the following compounds as...

Question 13

Identify each of the following compounds as covalent or ionic.
-dihydrogen sulfide

Accepted Answer

The answer of Identify each of the following compounds as...

Question 14

Which one of the following compounds contains an ion with a 3+ charge?

Accepted Answer

A)  KCl 
B)  Na2O 
C)  FeCl3 
D)  CuCl 
E)  MgCl₂ 
A)  KCl 
B)  Na2O 
C)  FeCl3 
D)  CuCl 
E)  MgCl₂

Question 15

The name of the HSO₄- ion is

Accepted Answer

A)  sulfate. 
B)  hydrogen sulfate. 
C)  sulfite. 
D)  hydrogen sulfite. 
E)  sulfide. 
A)  sulfate. 
B)  hydrogen sulfate. 
C)  sulfite. 
D)  hydrogen sulfite. 
E)  sulfide.

Question 16

The correct formula for the compound formed from Mg and S is

Accepted Answer

A)  MgS. 
B)  MgS2. 
C)  Mg2S. 
D)  Mg2S2. 
E)  Mg2S3. 
A)  MgS. 
B)  MgS2. 
C)  Mg2S. 
D)  Mg2S2. 
E)  Mg2S3.

Question 17

Match the correct name of the polyatomic ions with the formulas given.
-NO₂-

Accepted Answer

A)  sulfate 
B)  nitrate 
C)  hydrogen carbonate 
D)  hydroxide 
E)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate. 
A)  sulfate 
B)  nitrate 
C)  hydrogen carbonate 
D)  hydroxide 
E)  nitrite
F) oxide
G) phosphate
H) carbonate
I) hydrogen sulfite
J) carbonite
K) sulfite
L) hydrogen sulfate
M) phosphate.

Question 18

The correct formula for a compound formed from the elements Al and O is

Accepted Answer

A)  AlO. 
B)  Al2O. 
C)  Al3O₂. 
D)  AlO₃ . 
E)  Al2O₃ . 
A)  AlO. 
B)  Al2O. 
C)  Al3O₂. 
D)  AlO₃ . 
E)  Al2O₃ .

Question 19

The types of compounds that use prefixes in their names are

Accepted Answer

A)  ionic compounds. 
B)  ionic compounds involving transition metals. 
C)  polyatomic ions. 
D)  covalent compounds. 
E)  compounds that contain polyatomic ions. 
A)  ionic compounds. 
B)  ionic compounds involving transition metals. 
C)  polyatomic ions. 
D)  covalent compounds. 
E)  compounds that contain polyatomic ions.

Question 20

Which of the following substances contains a nonpolar covalent bond?

Accepted Answer

A)  H₂O 
B)  NaCl 
C)  NH3 
D)  MgF2 
E)  N₂ 
A)  H₂O 
B)  NaCl 
C)  NH3 
D)  MgF2 
E)  N₂

Exam 5: Compounds and Their Bonds

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

Which of the following compounds contains an ionic bond?

Choose the best electron-dot structure for CH₂Cl₂.

Match the correct name of the polyatomic ions with the formulas given. -Ca

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

Match the correct name of the polyatomic ions with the formulas given. -SO₃2-

Match the correct name of the polyatomic ions with the formulas given. -HSO₄-

Identify each of the following molecules as polar or nonpolar. -water

Which of the following compounds contains a polar covalent bond?

The shape of the carbon tetrachloride molecule is

The name of Al2(SO₄)3 is

Identify each of the following compounds as covalent or ionic. -sodium fluoride

Identify each of the following compounds as covalent or ionic. -dihydrogen sulfide

Which one of the following compounds contains an ion with a 3+ charge?

The name of the HSO₄- ion is

The correct formula for the compound formed from Mg and S is

Match the correct name of the polyatomic ions with the formulas given. -NO₂-

The correct formula for a compound formed from the elements Al and O is

The types of compounds that use prefixes in their names are

Which of the following substances contains a nonpolar covalent bond?

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Nuclear Chemistry

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters

Match the correct name of the polyatomic ions with the formulas given. -SO₃^2-

The name of Al₂(SO₄)₃ is