Question 1

Which element is present in the largest amount (by number of atoms) in the human body?

Accepted Answer

A)  carbon 
B)  hydrogen 
C)  nitrogen 
D)  oxygen 
A)  carbon 
B)  hydrogen 
C)  nitrogen 
D)  oxygen

Question 2

Which of the following types of orbitals can hold a maximum of 10 electrons when filled?

Accepted Answer

A)  s 
B)  p 
C)  d 
D)  f 
A)  s 
B)  p 
C)  d 
D)  f

Question 3

Which of the following elements is named after a person?

Accepted Answer

A)  Er 
B)  Fr 
C)  Os 
D)  Sg 
A)  Er 
B)  Fr 
C)  Os 
D)  Sg

Question 4

Ammonium nitrate is a compound that is used in fertilizers and explosives. It has nitrogen, hydrogen, and oxygen atoms in the ratio 2:4:3. What is the correct formula for ammonium nitrate?

Accepted Answer

A)  N4H8O6 
B)  N2H4O3 
C)  NH2O1.5 
D)  N3H4O2 
A)  N4H8O6 
B)  N2H4O3 
C)  NH2O1.5 
D)  N3H4O2

Question 5

Which of the following elements is named after a city?

Accepted Answer

A)  B 
B)  Be 
C)  Bi 
D)  Bk 
A)  B 
B)  Be 
C)  Bi 
D)  Bk

Question 6

In the regions of the periodic table associated with the main group elements, which type of orbitals are being filled?

Accepted Answer

A)  s only 
B)  p only 
C)  s or p 
D)  d only 
A)  s only 
B)  p only 
C)  s or p 
D)  d only

Question 7

Which of the following gives the correct order of ionization energies?

Accepted Answer

A)  Li  Mg > P > Cl 
C)  both Li  Mg > P > CI 
D)  neither Li  Mg > P > CI 
A)  Li  Mg > P > Cl 
C)  both Li  Mg > P > CI 
D)  neither Li  Mg > P > CI

Question 8

How many neutrons are present in a boron-10 atom?

Accepted Answer

A)  3 
B)  4 
C)  5 
D)  6 
A)  3 
B)  4 
C)  5 
D)  6

Question 9

In the region of the periodic table associated with the transition elements, which type of orbitals are being filled?

Accepted Answer

A)  s 
B)  p 
C)  d 
D)  f 
A)  s 
B)  p 
C)  d 
D)  f

Question 10

Which of the following has the highest ionization energy?

Accepted Answer

A)  Br 
B)  Cl 
C)  F 
D)  I 
A)  Br 
B)  Cl 
C)  F 
D)  I

Question 11

Aluminum and fluorine form a compound in which aluminum and fluorine atoms are present in the ratio 1:3. What is the correct formula for this compound?

Accepted Answer

A)  AF3 
B)  AlFl3 
C)  AlF3 
D)  Al(F2)3 
A)  AF3 
B)  AlFl3 
C)  AlF3 
D)  Al(F2)3

Question 12

Which of the following determines the number of valence electrons in an atom of a main group element?

Accepted Answer

A)  the element's atomic number 
B)  the element's atomic weight 
C)  the element's column number 
D)  none of these 
A)  the element's atomic number 
B)  the element's atomic weight 
C)  the element's column number 
D)  none of these

Question 13

Which of the following statements describes a compound?

Accepted Answer

A)  A compound is a pure substance. 
B)  A compound obeys the law of constant composition. 
C)  A compound is both a pure substance and obeys the law of constant composition. 
D)  A compound is neither a pure substance nor obeys the law of constant composition. 
A)  A compound is a pure substance. 
B)  A compound obeys the law of constant composition. 
C)  A compound is both a pure substance and obeys the law of constant composition. 
D)  A compound is neither a pure substance nor obeys the law of constant composition.

Question 14

Which of the following statements describes a mixture?

Accepted Answer

A)  The component elements of a mixture can be present in any mass ratio. 
B)  Chemical techniques are required to separate the components of a mixture. 
C)  The component elements of a mixture can be present in any mass ratio and chemical techniques are required to separate the components of a mixture. 
D)  The component elements of a mixture cannot be present in any mass ratio and chemical techniques are not required to separate the components of a mixture. 
A)  The component elements of a mixture can be present in any mass ratio. 
B)  Chemical techniques are required to separate the components of a mixture. 
C)  The component elements of a mixture can be present in any mass ratio and chemical techniques are required to separate the components of a mixture. 
D)  The component elements of a mixture cannot be present in any mass ratio and chemical techniques are not required to separate the components of a mixture.

Exam 2: Atoms

Which element is present in the largest amount (by number of atoms) in the human body?

Which of the following types of orbitals can hold a maximum of 10 electrons when filled?

Which of the following elements is named after a person?

Ammonium nitrate is a compound that is used in fertilizers and explosives. It has nitrogen, hydrogen, and oxygen atoms in the ratio 2:4:3. What is the correct formula for ammonium nitrate?

Which of the following elements is named after a city?

In the regions of the periodic table associated with the main group elements, which type of orbitals are being filled?

Which of the following gives the correct order of ionization energies?

How many neutrons are present in a boron-10 atom?

In the region of the periodic table associated with the transition elements, which type of orbitals are being filled?

Which of the following has the highest ionization energy?

Aluminum and fluorine form a compound in which aluminum and fluorine atoms are present in the ratio 1:3. What is the correct formula for this compound?

Which of the following determines the number of valence electrons in an atom of a main group element?

Which of the following statements describes a compound?

Which of the following statements describes a mixture?

Matter, Energy, and Measurement

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters