Question 1

Which of the following is not a binary ionic compound?

Accepted Answer

A)  lithium sulfide 
B)  potassium iodide 
C)  calcium chloride 
D)  hydrogen sulfide 
A)  lithium sulfide 
B)  potassium iodide 
C)  calcium chloride 
D)  hydrogen sulfide

Question 2

Which of the following pairs has the same number valence electrons?

Accepted Answer

A)  magnesium and potassium 
B)  lithium and calcium 
C)  argon and xenon 
D)  phosphorus and tellurium 
A)  magnesium and potassium 
B)  lithium and calcium 
C)  argon and xenon 
D)  phosphorus and tellurium

Question 3

The sulfur atom in sulfur dioxide has two unpaired electrons.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following cations have the least positive charge?

Accepted Answer

A)  cobaltous 
B)  ferrous 
C)  stannous 
D)  cuprous 
A)  cobaltous 
B)  ferrous 
C)  stannous 
D)  cuprous

Question 5

Which of the following polyatomic ions has the least atoms per formula unit?

Accepted Answer

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

Question 6

Sodium is the least electronegative in the group H, S, Cl, and Na.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following AQUEOUS acids does not have the -ous ending?

Accepted Answer

A)  H₂SO₃ 
B)  HNO₂ 
C)  HClO₂ 
D)  H₂CO₃ 
A)  H₂SO₃ 
B)  HNO₂ 
C)  HClO₂ 
D)  H₂CO₃

Question 8

A covalent bond is formed by the sharing of the innermost electrons.

Accepted Answer

A) True 
 B)False

Question 9

What is the chemical formula of calcium phosphate?

Accepted Answer

A)  CaPO₄ 
B)  Ca₂PO₄ 
C)  Ca3PO₄ 
D)  Ca3(PO₄)2 
A)  CaPO₄ 
B)  Ca₂PO₄ 
C)  Ca3PO₄ 
D)  Ca3(PO₄)2

Question 10

Energy is released as two atoms, such as two hydrogen atoms, form, a bond.

Accepted Answer

A) True 
 B)False

Question 11

The formula for sodium sulfite is ________.

Accepted Answer

A)  Na₂S 
B)  Na₂SO₃ 
C)  Na₂S2O₃ 
D)  Na₂SO₄ 
A)  Na₂S 
B)  Na₂SO₃ 
C)  Na₂S2O₃ 
D)  Na₂SO₄

Question 12

The H- ion is called ________.

Accepted Answer

A)  hydroxide 
B)  hydride 
C)  hydranion 
D)  hydrogen 
A)  hydroxide 
B)  hydride 
C)  hydranion 
D)  hydrogen

Question 13

Elements that belong to the same group have the same number of valence electrons.

Accepted Answer

A) True 
 B)False

Question 14

The number of valence electrons in the ammonium ion is 10.

Accepted Answer

A) True 
 B)False

Question 15

The chemical compound, Na₂S, has the is named sodium sulfate.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following polyatomic ions is the most negatively charged?

Accepted Answer

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

Question 17

Nitrogen trifluoride has ________ bonds, ________ of which are single bonds.

Accepted Answer

A)  3; 3 
B)  5; 1 
C)  7; 2 
D)  8; 3 
A)  3; 3 
B)  5; 1 
C)  7; 2 
D)  8; 3

Question 18

The electronegativity of chlorine is 3.0 while that of iodine is 2.5. The correct way of writing the formula of a molecule composed of one chlorine and one iodine atoms and the corresponding name are ________.

Accepted Answer

A)  ClI, chloroiodine 
B)  ClI, chlorine monoiodide 
C)  ICl, iodine monochloride 
D)  ICl, iodochlorine 
A)  ClI, chloroiodine 
B)  ClI, chlorine monoiodide 
C)  ICl, iodine monochloride 
D)  ICl, iodochlorine

Question 19

A binary covalent compound is composed of ________.

Accepted Answer

A)  two metalloids 
B)  a metal and a non-metal 
C)  two non-metals 
D)  either A or C 
A)  two metalloids 
B)  a metal and a non-metal 
C)  two non-metals 
D)  either A or C

Question 20

Elements that belong to the same period have the same number of valence electrons.

Accepted Answer

A) True 
 B)False

Which of the following is not a binary ionic compound?

Which of the following pairs has the same number valence electrons?

The sulfur atom in sulfur dioxide has two unpaired electrons.

Which of the following cations have the least positive charge?

Which of the following polyatomic ions has the least atoms per formula unit?

Sodium is the least electronegative in the group H, S, Cl, and Na.

Which of the following AQUEOUS acids does not have the -ous ending?

A covalent bond is formed by the sharing of the innermost electrons.

What is the chemical formula of calcium phosphate?

Energy is released as two atoms, such as two hydrogen atoms, form, a bond.

The formula for sodium sulfite is ________.

The H- ion is called ________.

Elements that belong to the same group have the same number of valence electrons.

The number of valence electrons in the ammonium ion is 10.

The chemical compound, Na₂S, has the is named sodium sulfate.

Which of the following polyatomic ions is the most negatively charged?

Nitrogen trifluoride has bonds, of which are single bonds.

The electronegativity of chlorine is 3.0 while that of iodine is 2.5. The correct way of writing the formula of a molecule composed of one chlorine and one iodine atoms and the corresponding name are ________.

A binary covalent compound is composed of ________.

Elements that belong to the same period have the same number of valence electrons.

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

Which of the following is not a binary ionic compound?

Which of the following pairs has the same number valence electrons?

The sulfur atom in sulfur dioxide has two unpaired electrons.

Which of the following cations have the least positive charge?

Which of the following polyatomic ions has the least atoms per formula unit?

Sodium is the least electronegative in the group H, S, Cl, and Na.

Which of the following AQUEOUS acids does not have the -ous ending?

A covalent bond is formed by the sharing of the innermost electrons.

What is the chemical formula of calcium phosphate?

Energy is released as two atoms, such as two hydrogen atoms, form, a bond.

The formula for sodium sulfite is ________.

The H- ion is called ________.

Elements that belong to the same group have the same number of valence electrons.

The number of valence electrons in the ammonium ion is 10.

The chemical compound, Na₂S, has the is named sodium sulfate.

Which of the following polyatomic ions is the most negatively charged?

Nitrogen trifluoride has ________ bonds, ________ of which are single bonds.

The electronegativity of chlorine is 3.0 while that of iodine is 2.5. The correct way of writing the formula of a molecule composed of one chlorine and one iodine atoms and the corresponding name are ________.

A binary covalent compound is composed of ________.

Elements that belong to the same period have the same number of valence electrons.

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

Nitrogen trifluoride has bonds, of which are single bonds.