Question 1

Which of the following metals would not use a Roman numeral as part of its name in a compound?

Accepted Answer

A) Cr 
B) Mn 
C) Co 
D) Ca

Question 2

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, there is a double bond between_____________________and ____________________.

Accepted Answer

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

Question 3

Using normal bonding requirements for atoms, the following correctly shows the bonding in a compound with the formula C2H3N.

Accepted Answer

A) True 
 B)False

Question 4

When we name a molecular binary compound which of the following is true?

Accepted Answer

A) The element that has more atoms in the molecule is named first. 
B) The elements are named in alphabetical order. 
C) The less electronegative element is named first. 
D) The more electronegative element is named first.

Question 5

N^3- and O^2- have the same number of _____________________.

Accepted Answer

The answer of N^3- and O^2- have the same number...

Question 6

Which is most likely true for an atom with one valence electron?

Accepted Answer

A) It will gain one electron. 
B) It will gain two electrons. 
C) It will lose one electron. 
D) It will lose two electrons.

Question 7

Which of the following occurs when an ionic bond is formed?

Accepted Answer

A) Electrons are transferred from the more electronegative element to the less electronegative element. 
B) Electrons are transferred from the less electronegative element to the more electronegative element. 
C) Electrons are shared equally. 
D) Electrons are shared unequally.

Question 8

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 9

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

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

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

What type of particles can atoms gain or lose when they become ions?

Accepted Answer

A) protons 
B) neutrons 
C) electrons 
D) It depends on the atom involved.

Question 12

An ionic bond is associated with which of the following?

Accepted Answer

A) interactions between nuclei 
B) equal sharing of electrons 
C) unequal sharing of electrons 
D) the transfer of electrons

Question 13

Enter an integer number (1, 2, 3, ...) in the blank. How many electrons are in shell 2 of a N^3- ion? ____________________electrons

Accepted Answer

The answer of Enter an integer number (1, 2, 3,...

Question 14

In the following compound, phosphorus (P) would be at the center of the molecule.
PBrClF

Accepted Answer

A) True 
 B)False

Question 15

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.

Question 16

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

Question 17

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 Phosgene is a compound used as a...

Question 18

An ion of phosphorus has a -3 charge. Which of the following is true?

Accepted Answer

A) It is a cation. 
B) It contains more protons than electrons. 
C) It contains 18 electrons. 
D) It contains 12 protons.

Question 19

The following represents the formation of bond between atoms A and X. Based on this diagram which element is more electronegative?

Accepted Answer

A) A 
B) X 
C) A and X have the same electronegativity.

Question 20

What is the mass of 1.00 mol of sulfur trioxide?

Accepted Answer

A) 48.06 g 
B) 80.06 g 
C) 32.06 g 
D) 112.18 g

Exam 3: Chemical Bonds

Which of the following metals would not use a Roman numeral as part of its name in a compound?

Using normal bonding requirements for atoms, the following correctly shows the bonding in a compound with the formula C₂H₃N.

When we name a molecular binary compound which of the following is true?

N^3- and O^2- have the same number of _____________________.

Which is most likely true for an atom with one valence electron?

Which of the following occurs when an ionic bond is formed?

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

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.

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

What type of particles can atoms gain or lose when they become ions?

An ionic bond is associated with which of the following?

Enter an integer number (1, 2, 3, ...) in the blank. How many electrons are in shell 2 of a N^3- ion? ____________________electrons

In the following compound, phosphorus (P) would be at the center of the molecule. PBrClF

Which of the following statements is generally true about electronegativity?

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

An ion of phosphorus has a -3 charge. Which of the following is true?

The following represents the formation of bond between atoms A and X. Based on this diagram which element is more electronegative?

What is the mass of 1.00 mol of sulfur trioxide?

Exam 3: Chemical Bonds

Which of the following metals would not use a Roman numeral as part of its name in a compound?

Using normal bonding requirements for atoms, the following correctly shows the bonding in a compound with the formula C2H3N.

When we name a molecular binary compound which of the following is true?

N3- and O2- have the same number of _____________________.

Which is most likely true for an atom with one valence electron?

Which of the following occurs when an ionic bond is formed?

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

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.

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

What type of particles can atoms gain or lose when they become ions?

An ionic bond is associated with which of the following?

Enter an integer number (1, 2, 3, ...) in the blank. How many electrons are in shell 2 of a N3- ion? ____________________electrons

In the following compound, phosphorus (P) would be at the center of the molecule. PBrClF

Which of the following statements is generally true about electronegativity?

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

An ion of phosphorus has a -3 charge. Which of the following is true?

The following represents the formation of bond between atoms A and X. Based on this diagram which element is more electronegative?

What is the mass of 1.00 mol of sulfur trioxide?

Using normal bonding requirements for atoms, the following correctly shows the bonding in a compound with the formula C₂H₃N.

N^3- and O^2- have the same number of _____________________.

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.

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

Enter an integer number (1, 2, 3, ...) in the blank. How many electrons are in shell 2 of a N^3- ion? ____________________electrons

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