Question 1

How many electrons are associated with a double bond?

Accepted Answer

A)  1 
B)  2 
C)  4 
D)  6 
A)  1 
B)  2 
C)  4 
D)  6

Question 2

Sodium loses an electron in forming an ion which gives the ion a +1 charge.

Accepted Answer

A) True 
 B)False

Question 3

The compound represented below has the formula Na2S.

Accepted Answer

A) True 
 B)False

Question 4

How many moles of oxygen are in 1.00 mol of carbon monoxide?

Accepted Answer

A)  1 mol 
B)  2 mol 
C)  4 mol 
D)  3 mol 
A)  1 mol 
B)  2 mol 
C)  4 mol 
D)  3 mol

Question 5

Draw the Lewis structure for the following using lines to represent bonding electron pairs. SiF4

Accepted Answer

Question 6

Metals gain electrons to become ions in ionic compounds.

Accepted Answer

A) True 
 B)False

Question 7

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

Question 8

Phosphorus must gain three electrons to obey the octet rule.

Accepted Answer

A) True 
 B)False

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.
-The central atom in phosgene is_____________________.

Accepted Answer

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

Question 10

Write the formula that corresponds to the name given below. phosphorous trichloride

Accepted Answer

The answer of Write the formula that corresponds to the...

Question 11

A possible bonding pattern for an element in Group 5A would be to form one single bond and one double bond.

Accepted Answer

A) True 
 B)False

Question 12

Based on electronegativity values, in the bond shown below, nitrogen will have the negative charge. H-N

Accepted Answer

A) True 
 B)False

Question 13

How many bonds does a carbon atom typically form?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
A)  2 
B)  4 
C)  6 
D)  8

Question 14

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

Question 15

The formula that corresponds to the IUPAC name dichlorine monoxide is Cl2O.

Accepted Answer

A) True 
 B)False

Question 16

The name for the compound formed between Co3+ and O2- is cobalt(II) oxide.

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

Question 18

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 compound _____________________gains electrons and __________________loses electrons.

Accepted Answer

S, Al
sulf

Question 19

Which of the following is an acceptable way to represent dinitrogen monoxide?

Accepted Answer

A)  N2O 
B)  nitric oxide 
C)  NO2 
D)  both a and b 
A)  N2O 
B)  nitric oxide 
C)  NO2 
D)  both a and b

Question 20

Based on the number of valence electrons, sulfur (S) would normally form 1 bonds.

Accepted Answer

A) True 
 B)False

How many electrons are associated with a double bond?

Sodium loses an electron in forming an ion which gives the ion a +1 charge.

The compound represented below has the formula Na₂S.

How many moles of oxygen are in 1.00 mol of carbon monoxide?

Draw the Lewis structure for the following using lines to represent bonding electron pairs. SiF₄

Metals gain electrons to become ions in ionic compounds.

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

Phosphorus must gain three electrons to obey the octet rule.

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. -The central atom in phosgene is_____________________.

Write the formula that corresponds to the name given below. phosphorous trichloride

A possible bonding pattern for an element in Group 5A would be to form one single bond and one double bond.

Based on electronegativity values, in the bond shown below, nitrogen will have the negative charge. H-N

How many bonds does a carbon atom typically form?

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

The formula that corresponds to the IUPAC name dichlorine monoxide is Cl₂O.

The name for the compound formed between Co³⁺ and O^2- is cobalt(II) oxide.

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

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 compound ___gains electrons and loses electrons.

Which of the following is an acceptable way to represent dinitrogen monoxide?

Based on the number of valence electrons, sulfur (S) would normally form 1 bonds.

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

Exam 3: Chemical Bonds

How many electrons are associated with a double bond?

Sodium loses an electron in forming an ion which gives the ion a +1 charge.

The compound represented below has the formula Na2S.

How many moles of oxygen are in 1.00 mol of carbon monoxide?

Draw the Lewis structure for the following using lines to represent bonding electron pairs. SiF4

Metals gain electrons to become ions in ionic compounds.

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

Phosphorus must gain three electrons to obey the octet rule.

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. -The central atom in phosgene is_____________________.

Write the formula that corresponds to the name given below. phosphorous trichloride

A possible bonding pattern for an element in Group 5A would be to form one single bond and one double bond.

Based on electronegativity values, in the bond shown below, nitrogen will have the negative charge. H-N

How many bonds does a carbon atom typically form?

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

The formula that corresponds to the IUPAC name dichlorine monoxide is Cl2O.

The name for the compound formed between Co3+ and O2- is cobalt(II) oxide.

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

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 compound _____________________gains electrons and __________________loses electrons.

Which of the following is an acceptable way to represent dinitrogen monoxide?

Based on the number of valence electrons, sulfur (S) would normally form 1 bonds.

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

The compound represented below has the formula Na₂S.

Draw the Lewis structure for the following using lines to represent bonding electron pairs. SiF₄

The formula that corresponds to the IUPAC name dichlorine monoxide is Cl₂O.

The name for the compound formed between Co³⁺ and O^2- is cobalt(II) oxide.

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

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 compound ___gains electrons and loses electrons.