Question 1

Which of the following has the highest electronegativity?

Accepted Answer

A)  O 
B)  N 
C)  Si 
D)  P 
A)  O 
B)  N 
C)  Si 
D)  P A

Question 2

Sodium combines with oxygen to form Na2O. The expected formula between lithium and tellurium would be Li2Te.

Accepted Answer

A) True 
 B)False  True

Question 3

Completion
Phosgene is a compound used as a building block of some pharmaceuticals. It contains two chlorine atoms, one oxygen atom, and one carbon atom. Complete the following statement using the appropriate chemical symbol for the elements.
-In the Lewis structure for phosgene, two electrons are shared between the___________________ atom and the ____________________atom.

Accepted Answer

C, Cl
Cl, C
carbon, chlorine
chlorine, carbon

Question 4

What is the formula for a compound named calcium nitride?

Accepted Answer

A)  CaN 
B)  Ca3N2 
C)  Ca2N3 
D)  Ca3N 
A)  CaN 
B)  Ca3N2 
C)  Ca2N3 
D)  Ca3N

Question 5

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element.
-The formula for the ionic compound formed contains two_______________________ions and three ______________________ions.

Accepted Answer

Al, S
aluminum, sulf

Question 6

In which of the following cases is a polar covalent bond formed?

Accepted Answer

A)  when an electron is transferred from one atom to another 
B)  when the electrons of a bond are shared equally by the two atoms 
C)  when the electrons of a bond are shared unequally by the two atoms 
D)  when a metallic element forms a bond with a non-metallic element 
A)  when an electron is transferred from one atom to another 
B)  when the electrons of a bond are shared equally by the two atoms 
C)  when the electrons of a bond are shared unequally by the two atoms 
D)  when a metallic element forms a bond with a non-metallic element

Question 7

Using most common charges, the ionic compound that forms between calcium (Ca) and sulfur (S) has the formula

Accepted Answer

A)  Ca2S 
B)  CaS 
C)  CaS2 
D)  Ca2S3 
A)  Ca2S 
B)  CaS 
C)  CaS2 
D)  Ca2S3

Question 8

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element.
-In the formation of this ionic compound, the _____________________atom attains a -2 charge.

Accepted Answer

The answer of Aluminum (Al) and sulfur (S) combine to...

Question 9

Completion
Phosgene is a compound used as a building block of some pharmaceuticals. It contains two chlorine atoms, one oxygen atom, and one carbon atom. Complete the following statement using the appropriate chemical symbol for the elements.
-Based on electronegativity values, the _________________________atom in phosgene would have a positive charge.

Accepted Answer

The answer of Completion
Phosgene is a compound used as a...

Question 10

Redraw the following Lewis structure using lines to represent bonding electron pairs.

Accepted Answer

The answer of Redraw the following Lewis structure using lines...

Question 11

What is the correct IUPAC name for a compound with the formula N2O3?

Accepted Answer

A)  nitrogen oxide 
B)  nitrogen trioxide 
C)  nitrogen ozide 
D)  dinitrogen trioxide 
A)  nitrogen oxide 
B)  nitrogen trioxide 
C)  nitrogen ozide 
D)  dinitrogen trioxide

Question 12

Which of the following statements is generally true about electronegativity?

Accepted Answer

A)  Electronegativity decreases as we move left to right and decreases as we move top to bottom. 
B)  Electronegativity decreases as we move left to right and increases as we move top to bottom. 
C)  Electronegativity increases as we move left to right and decreases as we move top to bottom. 
D)  Electronegativity increases as we move left to right and increases as we move top to bottom. 
A)  Electronegativity decreases as we move left to right and decreases as we move top to bottom. 
B)  Electronegativity decreases as we move left to right and increases as we move top to bottom. 
C)  Electronegativity increases as we move left to right and decreases as we move top to bottom. 
D)  Electronegativity increases as we move left to right and increases as we move top to bottom.

Question 13

oxygen
The following is the Lewis structure for the compound commonly known as acetylene   Fill in the blanks with the appropriate integer including zero if necessary (0, 1, 2, 3, etc.).
-Acetylene contains_____________________nonbonding electrons.

Accepted Answer

The answer of oxygen
The following is the Lewis structure for...

Question 14

Which Period 3 element has the weakest attaction for electrons? Enter the chemical symbol in the blank. ________

Accepted Answer

The answer of Which Period 3 element has the weakest...

Question 15

Potassium tends to form a cation (K+).

Accepted Answer

A) True 
 B)False

Question 16

Examine the following image showing a "subatomic" level diagram of two atoms forming a bond.   The type of bond formed is a single covalent bond.

Accepted Answer

A) True 
 B)False

Question 17

Chloride ion (Cl-) is an anion because it has lost an electron.

Accepted Answer

A) True 
 B)False

Question 18

When an ionic compound forms between aluminum (Al) and nitrogen (N) atoms,

Accepted Answer

A)  nitrogen donates electrons to aluminum. 
B)  nitrogen attains a positive charge and aluminum a negative charge. 
C)  aluminum donates electrons to nitrogen. 
D)  both a and b 
A)  nitrogen donates electrons to aluminum. 
B)  nitrogen attains a positive charge and aluminum a negative charge. 
C)  aluminum donates electrons to nitrogen. 
D)  both a and b

Question 19

The compound represented below contains two single covalent bonds.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following occurs when a sulfur atom is converted to S2-?

Accepted Answer

A)  The sulfur atom gains two electrons and loses two protons. 
B)  The sulfur atom gains two electrons. 
C)  The sulfur atom loses two electrons and two protons. 
D)  The sulfur atom loses two electrons. 
A)  The sulfur atom gains two electrons and loses two protons. 
B)  The sulfur atom gains two electrons. 
C)  The sulfur atom loses two electrons and two protons. 
D)  The sulfur atom loses two electrons.

Which of the following has the highest electronegativity?

Sodium combines with oxygen to form Na₂O. The expected formula between lithium and tellurium would be Li₂Te.

What is the formula for a compound named calcium nitride?

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element. -The formula for the ionic compound formed contains two_ions and three ions.

In which of the following cases is a polar covalent bond formed?

Using most common charges, the ionic compound that forms between calcium (Ca) and sulfur (S) has the formula

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element. -In the formation of this ionic compound, the _____________________atom attains a -2 charge.

Redraw the following Lewis structure using lines to represent bonding electron pairs.

What is the correct IUPAC name for a compound with the formula N₂O₃?

Which of the following statements is generally true about electronegativity?

oxygen The following is the Lewis structure for the compound commonly known as acetylene Fill in the blanks with the appropriate integer including zero if necessary (0, 1, 2, 3, etc.). -Acetylene contains_____________________nonbonding electrons.

Which Period 3 element has the weakest attaction for electrons? Enter the chemical symbol in the blank. ________

Potassium tends to form a cation (K⁺).

Examine the following image showing a "subatomic" level diagram of two atoms forming a bond. The type of bond formed is a single covalent bond.

Chloride ion (Cl^-) is an anion because it has lost an electron.

When an ionic compound forms between aluminum (Al) and nitrogen (N) atoms,

The compound represented below contains two single covalent bonds.

Which of the following occurs when a sulfur atom is converted to S^2-?

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Energy and Physical Properties

Solution Concentration

Chemical Reactions

Acids and Bases

Nuclear Chemistry

Hydrocarbons: an Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

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Exam 3: Chemical Bonds

Which of the following has the highest electronegativity?

Sodium combines with oxygen to form Na2O. The expected formula between lithium and tellurium would be Li2Te.

What is the formula for a compound named calcium nitride?

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element. -The formula for the ionic compound formed contains two_______________________ions and three ______________________ions.

In which of the following cases is a polar covalent bond formed?

Using most common charges, the ionic compound that forms between calcium (Ca) and sulfur (S) has the formula

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element. -In the formation of this ionic compound, the _____________________atom attains a -2 charge.

Redraw the following Lewis structure using lines to represent bonding electron pairs.

What is the correct IUPAC name for a compound with the formula N2O3?

Which of the following statements is generally true about electronegativity?

oxygen The following is the Lewis structure for the compound commonly known as acetylene Fill in the blanks with the appropriate integer including zero if necessary (0, 1, 2, 3, etc.). -Acetylene contains_____________________nonbonding electrons.

Which Period 3 element has the weakest attaction for electrons? Enter the chemical symbol in the blank. ________

Potassium tends to form a cation (K+).

Examine the following image showing a "subatomic" level diagram of two atoms forming a bond. The type of bond formed is a single covalent bond.

Chloride ion (Cl-) is an anion because it has lost an electron.

When an ionic compound forms between aluminum (Al) and nitrogen (N) atoms,

The compound represented below contains two single covalent bonds.

Which of the following occurs when a sulfur atom is converted to S2-?

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Energy and Physical Properties

Solution Concentration

Chemical Reactions

Acids and Bases

Nuclear Chemistry

Hydrocarbons: an Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

Sodium combines with oxygen to form Na₂O. The expected formula between lithium and tellurium would be Li₂Te.

Aluminum (Al) and sulfur (S) combine to form an ionic compound. Fill in the blank with the symbol for the appropriate element. -The formula for the ionic compound formed contains two_ions and three ions.

What is the correct IUPAC name for a compound with the formula N₂O₃?

Potassium tends to form a cation (K⁺).

Chloride ion (Cl^-) is an anion because it has lost an electron.

Which of the following occurs when a sulfur atom is converted to S^2-?