Question 1

Which of the following statements about the adenosine receptor is NOT true?

Accepted Answer

A)  The receptor only binds adenosine. 
B)  When adenosine is bound, a signal is sent to the cell to slow activity. 
C)  The receptor is found embedded in the cell membrane of neurons. 
D)  It is involved in preparing the brain for sleep. 
E)  Its normal signaling is blocked when caffeine binds. 
A)  The receptor only binds adenosine. 
B)  When adenosine is bound, a signal is sent to the cell to slow activity. 
C)  The receptor is found embedded in the cell membrane of neurons. 
D)  It is involved in preparing the brain for sleep. 
E)  Its normal signaling is blocked when caffeine binds.

Question 2

Nonmetals typically ______, and metals typically ______.

Accepted Answer

A)  donate electrons; accept electrons 
B)  accept electrons; donate electrons 
C)  donate protons; accept protons 
D)  accept protons; donate protons 
E)  donate neutrons; accept neutrons 
A)  donate electrons; accept electrons 
B)  accept electrons; donate electrons 
C)  donate protons; accept protons 
D)  accept protons; donate protons 
E)  donate neutrons; accept neutrons

Question 3

Another name for an ionic compound is a(n)________.

Accepted Answer

A)  cation 
B)  anion 
C)  ionic bond 
D)  covalent bond 
E)  salt 
A)  cation 
B)  anion 
C)  ionic bond 
D)  covalent bond 
E)  salt

Question 4

Below are two charged particles.What will they do when in close proximity to one another?

Accepted Answer

A)  They will do nothing. 
B)  The particle on the left will transfer its positive charge to the particle on the right. 
C)  The particle on the right will transfer its negative charge to the particle on the left. 
D)  They will attract one another. 
E)  They will repel one another. 
A)  They will do nothing. 
B)  The particle on the left will transfer its positive charge to the particle on the right. 
C)  The particle on the right will transfer its negative charge to the particle on the left. 
D)  They will attract one another. 
E)  They will repel one another.

Question 5

"Laughing gas" has the formula N2O.Which of the following is the best name for this compound?

Accepted Answer

A)  nitrogen oxygen 
B)  nitrogen oxide 
C)  nitrogen dioxide 
D)  dinitrogen monoxide 
E)  nitrogen(II)oxide 
A)  nitrogen oxygen 
B)  nitrogen oxide 
C)  nitrogen dioxide 
D)  dinitrogen monoxide 
E)  nitrogen(II)oxide

Question 6

Oxygen is a _______ and therefore _______ when it forms an ion.

Accepted Answer

A)  metal; loses electrons 
B)  metal; gains electrons 
C)  nonmetal; loses electrons 
D)  nonmetal; gains electrons 
E)  metalloid; loses electrons 
A)  metal; loses electrons 
B)  metal; gains electrons 
C)  nonmetal; loses electrons 
D)  nonmetal; gains electrons 
E)  metalloid; loses electrons

Question 7

A cation has __________ electrons and is ________ charged.

Accepted Answer

A)  gained; negatively 
B)  gained; positively 
C)  lost; negatively 
D)  lost; positively 
E)  the same number of protons; not 
A)  gained; negatively 
B)  gained; positively 
C)  lost; negatively 
D)  lost; positively 
E)  the same number of protons; not

Question 8

What is the ionic formula for the ionic compound composed of calcium and chloride ions?

Accepted Answer

A)  Ca2Cl 
B)  CaCl 
C)  Ca2Cl2 
D)  Ca2Cl3 
E)  CaCl2 
A)  Ca2Cl 
B)  CaCl 
C)  Ca2Cl2 
D)  Ca2Cl3 
E)  CaCl2

Question 9

Which of the following is a diatomic element?

Accepted Answer

A)  N2 
B)  NaCl 
C)  H2O 
D)  CO 
E)  Li2O 
A)  N2 
B)  NaCl 
C)  H2O 
D)  CO 
E)  Li2O

Question 10

Below is an ion of magnesium.To make this ion, the atom that it came from had to _________.

Accepted Answer

A)  gain two electrons 
B)  gain one electron 
C)  become a nonmetal 
D)  lose one electron 
E)  lose two electrons 
A)  gain two electrons 
B)  gain one electron 
C)  become a nonmetal 
D)  lose one electron 
E)  lose two electrons

Question 11

Which of the structures contains a double bond?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
E)  III and IV 
A)  I 
B)  II 
C)  III 
D)  IV 
E)  III and IV

Question 12

Which of the following ions does NOT have the same number of valence electrons as neon?

Accepted Answer

A)  fluoride ion 
B)  calcium ion 
C)  magnesium ion 
D)  oxide ion 
E)  sodium ion 
A)  fluoride ion 
B)  calcium ion 
C)  magnesium ion 
D)  oxide ion 
E)  sodium ion

Question 13

What is the name of the ionic compound that is composed of calcium and chlorine?

Accepted Answer

A)  calcium dichloride 
B)  dicalcium trichloride 
C)  dicalcium chloride 
D)  calcium chloride 
E)  dicalcium dichloride 
A)  calcium dichloride 
B)  dicalcium trichloride 
C)  dicalcium chloride 
D)  calcium chloride 
E)  dicalcium dichloride

Question 14

What is the charge on each chloride ion in an ionic compound composed of calcium and chlorine?

Accepted Answer

A)  +1 
B)  -1 
C)  +2 
D)  -2 
E)  +3 
A)  +1 
B)  -1 
C)  +2 
D)  -2 
E)  +3

Question 15

______ is a waste product excreted by the kidneys.It is a product of the breakdown of proteins.

Accepted Answer

A)  Glucose 
B)  Urea 
C)  Potassium 
D)  Amino acids 
E)  Electrolytes 
A)  Glucose 
B)  Urea 
C)  Potassium 
D)  Amino acids 
E)  Electrolytes

Question 16

Which of these structures represent ionic compounds?

Accepted Answer

A)  I and III 
B)  I and IV 
C)  IV and V 
D)  II and IV 
E)  I only 
A)  I and III 
B)  I and IV 
C)  IV and V 
D)  II and IV 
E)  I only

Question 17

Which of the following elements might have an expanded octet in a covalent molecule?

Accepted Answer

A)  No elements have an expanded octet. 
B)  Atoms in period 2 might have an expanded octet. 
C)  Atoms in period 3 might have an expanded octet. 
D)  Any of the atoms in group 2 might have an expanded octet. 
E)  Any of the atoms in group 3 might have an expanded octet. 
A)  No elements have an expanded octet. 
B)  Atoms in period 2 might have an expanded octet. 
C)  Atoms in period 3 might have an expanded octet. 
D)  Any of the atoms in group 2 might have an expanded octet. 
E)  Any of the atoms in group 3 might have an expanded octet.

Question 18

Which is the BEST Lewis structure for a molecule with the formula C2H3Cl?

Accepted Answer

A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e 
A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e

Question 19

Which of the following Lewis dot structures best represents the chlorine atom?

Accepted Answer

A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e 
A)  structure a 
B)  structure b 
C)  structure c 
D)  structure d 
E)  structure e

Question 20

Vinegar (C2H4O2)and baking soda (NaHCO3)are combined together and the resulting mixture bubbles, releasing a gas.This gas is a(n)

Accepted Answer

A)  ionic compound because ionic compounds can be gases at room temperature. 
B)  ionic compound because baking soda contains sodium. 
C)  covalent compound because covalent compounds can be gases at room temperature. 
D)  covalent compound because baking soda contains sodium. 
E)  It is neither a covalent compound nor an ionic compound. 
A)  ionic compound because ionic compounds can be gases at room temperature. 
B)  ionic compound because baking soda contains sodium. 
C)  covalent compound because covalent compounds can be gases at room temperature. 
D)  covalent compound because baking soda contains sodium. 
E)  It is neither a covalent compound nor an ionic compound.

Which of the following statements about the adenosine receptor is NOT true?

Nonmetals typically , and metals typically .

Another name for an ionic compound is a(n)________.

Below are two charged particles.What will they do when in close proximity to one another?

"Laughing gas" has the formula N₂O.Which of the following is the best name for this compound?

Oxygen is a _ and therefore _ when it forms an ion.

A cation has __ electrons and is charged.

What is the ionic formula for the ionic compound composed of calcium and chloride ions?

Which of the following is a diatomic element?

Below is an ion of magnesium.To make this ion, the atom that it came from had to _________.

Which of the structures contains a double bond?

Which of the following ions does NOT have the same number of valence electrons as neon?

What is the name of the ionic compound that is composed of calcium and chlorine?

What is the charge on each chloride ion in an ionic compound composed of calcium and chlorine?

______ is a waste product excreted by the kidneys.It is a product of the breakdown of proteins.

Which of these structures represent ionic compounds?

Which of the following elements might have an expanded octet in a covalent molecule?

Which is the BEST Lewis structure for a molecule with the formula C₂H₃Cl?

Which of the following Lewis dot structures best represents the chlorine atom?

Vinegar (C₂H₄O₂)and baking soda (NaHCO₃)are combined together and the resulting mixture bubbles, releasing a gas.This gas is a(n)

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 3: Ionic and Covalent Compounds

Which of the following statements about the adenosine receptor is NOT true?

Nonmetals typically ______, and metals typically ______.

Another name for an ionic compound is a(n)________.

Below are two charged particles.What will they do when in close proximity to one another?

"Laughing gas" has the formula N2O.Which of the following is the best name for this compound?

Oxygen is a _______ and therefore _______ when it forms an ion.

A cation has __________ electrons and is ________ charged.

What is the ionic formula for the ionic compound composed of calcium and chloride ions?

Which of the following is a diatomic element?

Below is an ion of magnesium.To make this ion, the atom that it came from had to _________.

Which of the structures contains a double bond?

Which of the following ions does NOT have the same number of valence electrons as neon?

What is the name of the ionic compound that is composed of calcium and chlorine?

What is the charge on each chloride ion in an ionic compound composed of calcium and chlorine?

______ is a waste product excreted by the kidneys.It is a product of the breakdown of proteins.

Which of these structures represent ionic compounds?

Which of the following elements might have an expanded octet in a covalent molecule?

Which is the BEST Lewis structure for a molecule with the formula C2H3Cl?

Which of the following Lewis dot structures best represents the chlorine atom?

Vinegar (C2H4O2)and baking soda (NaHCO3)are combined together and the resulting mixture bubbles, releasing a gas.This gas is a(n)

Matter, Energy, and Measurement

Atomic Structure and Radioisotopes

Molecular Geometry, Polarity, and Intermolecular

Chemical Quantities and Introduction to Reactions

Chemical Reactions: Energy, Rates, and Equilibrium

Changes of State and Gas Laws

Mixtures, Solution Concentrations, and Diffusion

Acids and Bases, Ph, and Buffers

Introduction to Organic Chemistry:

Alcohols, Phenols, Thiols, Ethers, and Amines

The Carbonyl Containing Functional Groups

The Common Organic Reactions in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Nonmetals typically , and metals typically .

"Laughing gas" has the formula N₂O.Which of the following is the best name for this compound?

Oxygen is a _ and therefore _ when it forms an ion.

A cation has __ electrons and is charged.

Which is the BEST Lewis structure for a molecule with the formula C₂H₃Cl?

Vinegar (C₂H₄O₂)and baking soda (NaHCO₃)are combined together and the resulting mixture bubbles, releasing a gas.This gas is a(n)