Question 1

If the electronegativity difference between the two atoms that make up a bond is 0.0, then the compound is covalent.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following anions has its number of oxygen atoms equal to a number other than 4?

Accepted Answer

A)  permanganate 
B)  perchlorate 
C)  hydrogen phosphate 
D)  nitrate 
A)  permanganate 
B)  perchlorate 
C)  hydrogen phosphate 
D)  nitrate

Question 3

Consider a bond A-B. If the difference in electronegativity is 1.0, the bond is considered ________.

Accepted Answer

A)  ionic 
B)  covalent 
C)  polar covalent 
D)  hydrogen 
A)  ionic 
B)  covalent 
C)  polar covalent 
D)  hydrogen

Question 4

Which of the following may not be classified as a polyanion?

Accepted Answer

A)  perchlorate 
B)  chlorate 
C)  chlorite 
D)  chloride 
A)  perchlorate 
B)  chlorate 
C)  chlorite 
D)  chloride

Question 5

How many valence electrons are needed to construct the Lewis dot structure of the BCL₃ molecule?

Accepted Answer

A)  11 
B)  21 
C)  24 
D)  32 
A)  11 
B)  21 
C)  24 
D)  32

Question 6

Which of the following elements has at least two differently charged cations?

Accepted Answer

A)  magnesium 
B)  calcium 
C)  cobalt 
D)  lithium 
A)  magnesium 
B)  calcium 
C)  cobalt 
D)  lithium

Question 7

Which of the following anions has 3 oxygen atoms and a net charge of -2?

Accepted Answer

A)  permanganate 
B)  chlorate 
C)  carbonate 
D)  nitrate 
A)  permanganate 
B)  chlorate 
C)  carbonate 
D)  nitrate

Question 8

What is the chemical formula of rhenium(VII) oxide?

Accepted Answer

A)  ReO7 
B)  ReO₄ 
C)  Re2O7 
D)  Re3O6 
A)  ReO7 
B)  ReO₄ 
C)  Re2O7 
D)  Re3O6

Question 9

Nitrogen in ammonia has three bonds and one non-bonded pair of electrons.

Accepted Answer

A) True 
 B)False

Question 10

Phosphine, PH₃, has ________ covalent pairs and ________ lone pairs.

Accepted Answer

A)  3; 0 
B)  3; 1 
C)  3; 2 
D)  2; 0 
A)  3; 0 
B)  3; 1 
C)  3; 2 
D)  2; 0

Question 11

Which of the following polyatomic ions is positively charged?

Accepted Answer

A)  ammonium 
B)  carbonate 
C)  dihydrogen phosphate 
D)  acetate 
A)  ammonium 
B)  carbonate 
C)  dihydrogen phosphate 
D)  acetate

Question 12

Which of the following may be classified as oxyanion?

Accepted Answer

A)  perchlorate 
B)  bromide 
C)  ammonium 
D)  chloride 
A)  perchlorate 
B)  bromide 
C)  ammonium 
D)  chloride

Question 13

Sulfur tetrafluoride is the only compound that forms between sulfur and fluorine.

Accepted Answer

A) True 
 B)False

Question 14

Carbon dioxide obeys the octet rule.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following formulas includes a parenthesis?

Accepted Answer

A)  sodium dichromate 
B)  magnesium carbonate 
C)  aluminum nitrate 
D)  magnesium hydrogen phosphate 
A)  sodium dichromate 
B)  magnesium carbonate 
C)  aluminum nitrate 
D)  magnesium hydrogen phosphate

Question 16

Which of the following has the same number of valence electrons as sulfur?

Accepted Answer

A)  nitrogen 
B)  oxygen 
C)  arsenic 
D)  boron 
A)  nitrogen 
B)  oxygen 
C)  arsenic 
D)  boron

Question 17

Multiple covalent bonds arise when two atoms will share more than one pair of electrons with each other.

Accepted Answer

A) True 
 B)False

Question 18

How many valence electrons does a single, neutral iodine atom have?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  7 
A)  3 
B)  4 
C)  5 
D)  7

Question 19

Which of the following does not have a charge of -1?

Accepted Answer

A)  bicarbonate 
B)  bisulfate 
C)  hydrogen phosphate 
D)  nitrite 
A)  bicarbonate 
B)  bisulfate 
C)  hydrogen phosphate 
D)  nitrite

Question 20

Identify the least electronegative element.

Accepted Answer

A)  fluorine 
B)  oxygen 
C)  carbon 
D)  sodium 
A)  fluorine 
B)  oxygen 
C)  carbon 
D)  sodium

If the electronegativity difference between the two atoms that make up a bond is 0.0, then the compound is covalent.

Which of the following anions has its number of oxygen atoms equal to a number other than 4?

Consider a bond A-B. If the difference in electronegativity is 1.0, the bond is considered ________.

Which of the following may not be classified as a polyanion?

How many valence electrons are needed to construct the Lewis dot structure of the BCL₃ molecule?

Which of the following elements has at least two differently charged cations?

Which of the following anions has 3 oxygen atoms and a net charge of -2?

What is the chemical formula of rhenium(VII) oxide?

Nitrogen in ammonia has three bonds and one non-bonded pair of electrons.

Phosphine, PH₃, has covalent pairs and lone pairs.

Which of the following polyatomic ions is positively charged?

Which of the following may be classified as oxyanion?

Sulfur tetrafluoride is the only compound that forms between sulfur and fluorine.

Carbon dioxide obeys the octet rule.

Which of the following formulas includes a parenthesis?

Which of the following has the same number of valence electrons as sulfur?

Multiple covalent bonds arise when two atoms will share more than one pair of electrons with each other.

How many valence electrons does a single, neutral iodine atom have?

Which of the following does not have a charge of -1?

Identify the least electronegative element.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces - the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 5: Chemical Bonding and Nomenclature

If the electronegativity difference between the two atoms that make up a bond is 0.0, then the compound is covalent.

Which of the following anions has its number of oxygen atoms equal to a number other than 4?

Consider a bond A-B. If the difference in electronegativity is 1.0, the bond is considered ________.

Which of the following may not be classified as a polyanion?

How many valence electrons are needed to construct the Lewis dot structure of the BCL₃ molecule?

Which of the following elements has at least two differently charged cations?

Which of the following anions has 3 oxygen atoms and a net charge of -2?

What is the chemical formula of rhenium(VII) oxide?

Nitrogen in ammonia has three bonds and one non-bonded pair of electrons.

Phosphine, PH₃, has ________ covalent pairs and ________ lone pairs.

Which of the following polyatomic ions is positively charged?

Which of the following may be classified as oxyanion?

Sulfur tetrafluoride is the only compound that forms between sulfur and fluorine.

Carbon dioxide obeys the octet rule.

Which of the following formulas includes a parenthesis?

Which of the following has the same number of valence electrons as sulfur?

Multiple covalent bonds arise when two atoms will share more than one pair of electrons with each other.

How many valence electrons does a single, neutral iodine atom have?

Which of the following does not have a charge of -1?

Identify the least electronegative element.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces - the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Phosphine, PH₃, has covalent pairs and lone pairs.