Question 1

Nitrogen can form multiple oxides such as the air pollutants NO2 and N2O (aka laughing gas).

Accepted Answer

A) True 
 B)False

Question 2

The basic parts of the atom are

Accepted Answer

A) protons, neutrons, and electrons 
B) alpha particles, beta particles, and gamma rays 
C) alpha particles, beta particles, and neutrons 
D) electrons and positrons 
A) protons, neutrons, and electrons 
B) alpha particles, beta particles, and gamma rays 
C) alpha particles, beta particles, and neutrons 
D) electrons and positrons

Question 3

Give the formula of the covalent compound, used in pharmaceutical manufacturing, formed between boron (B) and bromine (Br).

Accepted Answer

A) BBr 
B) BBr2 
C) BBr3 
D) B3Br2 
A) BBr 
B) BBr2 
C) BBr3 
D) B3Br2

Question 4

Ernest Rutherford used his gold foil experiment to state that the atom is

Accepted Answer

A) like a plum pudding 
B) mostly empty space 
C) a miniature solar system 
D) a hard sphere like a billiard ball 
A) like a plum pudding 
B) mostly empty space 
C) a miniature solar system 
D) a hard sphere like a billiard ball

Question 5

What did Becquerel discover when he noticed that a crystal could produce an image on a photographic plate, without being in the sun?

Accepted Answer

A) electricity 
B) thermodynamics 
C) radioactiviity 
D) ultraviolet light 
A) electricity 
B) thermodynamics 
C) radioactiviity 
D) ultraviolet light

Question 6

Give the formula of the covalent compound, sometimes used in cleaning glass, formed between nitrogen and hydrogen.

Accepted Answer

A) NH 
B) NH2 
C) NH3 
D) N2H3 
A) NH 
B) NH2 
C) NH3 
D) N2H3

Question 7

The Periodic Law states that

Accepted Answer

A) matter cannot be created or destroyed. 
B) the properties of the elements are periodic functions of their boiling points. 
C) The properties of the elements are periodic functions of their atomic numbers. 
D) The properties of the elements are periodic functions of their masses. 
A) matter cannot be created or destroyed. 
B) the properties of the elements are periodic functions of their boiling points. 
C) The properties of the elements are periodic functions of their atomic numbers. 
D) The properties of the elements are periodic functions of their masses.

Question 8

Give the formula for the compound, used to treat acidic soils in agriculture, which is formed between calcium (Ca) and oxygen (O).

Accepted Answer

A) Ca2O 
B) CaO2 
C) Ca2O3 
D) CaO 
A) Ca2O 
B) CaO2 
C) Ca2O3 
D) CaO

Question 9

The Russian chemist Dmitri Mendeleev noticed how columns of elements behaved similarly and wrote the

Accepted Answer

A) First Law of Thermodynamics 
B) Law of Conservation of Mass 
C) Periodic Law 
D) Mass Action Law 
A) First Law of Thermodynamics 
B) Law of Conservation of Mass 
C) Periodic Law 
D) Mass Action Law

Question 10

The Structure H:H infers

Accepted Answer

A) an ionic bond between two hydrogen atoms to form the H2 molecule 
B) a covalent bond between two hydrogen atoms to form the H2 molecule 
C) two hydrogen atoms 
D) coordinate covalent bonding 
A) an ionic bond between two hydrogen atoms to form the H2 molecule 
B) a covalent bond between two hydrogen atoms to form the H2 molecule 
C) two hydrogen atoms 
D) coordinate covalent bonding

Question 11

In the following equation, what are the subscripts? P4 + 6Cl2 → 4 PCl3

Accepted Answer

A) 4, 2, and 3 
B) 1, 6, and 4 
C) 2, 3, and 4 d, 1, 2, and 3 
A) 4, 2, and 3 
B) 1, 6, and 4 
C) 2, 3, and 4 d, 1, 2, and 3

Question 12

Which is true of the proton?

Accepted Answer

A) Mass of one amu, charge of -1 
B) Mass of one amu, charge of +1 
C) Mass of zero, charge of +1 
D) Mass of zero, charge of -1 
A) Mass of one amu, charge of -1 
B) Mass of one amu, charge of +1 
C) Mass of zero, charge of +1 
D) Mass of zero, charge of -1

Question 13

Give the formula for the compound (a component of bones and teeth) made between calcium (Ca) and phosphate (PO4)3- ions.

Accepted Answer

A) CaPO4 
B) Ca2(PO4)3 
C) Ca3(PO4)2 
D) Ca2PO4 
A) CaPO4 
B) Ca2(PO4)3 
C) Ca3(PO4)2 
D) Ca2PO4

Nitrogen can form multiple oxides such as the air pollutants NO₂ and N₂O (aka laughing gas).

The basic parts of the atom are

Give the formula of the covalent compound, used in pharmaceutical manufacturing, formed between boron (B) and bromine (Br).

Ernest Rutherford used his gold foil experiment to state that the atom is

What did Becquerel discover when he noticed that a crystal could produce an image on a photographic plate, without being in the sun?

Give the formula of the covalent compound, sometimes used in cleaning glass, formed between nitrogen and hydrogen.

The Periodic Law states that

Give the formula for the compound, used to treat acidic soils in agriculture, which is formed between calcium (Ca) and oxygen (O).

The Russian chemist Dmitri Mendeleev noticed how columns of elements behaved similarly and wrote the

The Structure H:H infers

In the following equation, what are the subscripts? P₄ + 6Cl₂ → 4 PCl₃

Which is true of the proton?

Give the formula for the compound (a component of bones and teeth) made between calcium (Ca) and phosphate (PO₄)^3-ions.

Background to the Environmental Problem

The Natural Laws

Types of Chemical Compounds and Their Reactions

Element Cycles

Toxicology

Energy and Modern Society

Emerging Energy Sources

Weather and Climate

Air Quality

Air Inside

Global Atmospheric Change

Water

Water Quality

Solid Wastes

Hazardous Wastes

Filters

Exam 3: Underlying Principles of Chemistry

Nitrogen can form multiple oxides such as the air pollutants NO2 and N2O (aka laughing gas).

The basic parts of the atom are

Give the formula of the covalent compound, used in pharmaceutical manufacturing, formed between boron (B) and bromine (Br).

Ernest Rutherford used his gold foil experiment to state that the atom is

What did Becquerel discover when he noticed that a crystal could produce an image on a photographic plate, without being in the sun?

Give the formula of the covalent compound, sometimes used in cleaning glass, formed between nitrogen and hydrogen.

The Periodic Law states that

Give the formula for the compound, used to treat acidic soils in agriculture, which is formed between calcium (Ca) and oxygen (O).

The Russian chemist Dmitri Mendeleev noticed how columns of elements behaved similarly and wrote the

The Structure H:H infers

In the following equation, what are the subscripts? P4 + 6Cl2 → 4 PCl3

Which is true of the proton?

Give the formula for the compound (a component of bones and teeth) made between calcium (Ca) and phosphate (PO4)3- ions.

Background to the Environmental Problem

The Natural Laws

Types of Chemical Compounds and Their Reactions

Element Cycles

Toxicology

Energy and Modern Society

Emerging Energy Sources

Weather and Climate

Air Quality

Air Inside

Global Atmospheric Change

Water

Water Quality

Solid Wastes

Hazardous Wastes

Filters

Nitrogen can form multiple oxides such as the air pollutants NO₂ and N₂O (aka laughing gas).

In the following equation, what are the subscripts? P₄ + 6Cl₂ → 4 PCl₃

Give the formula for the compound (a component of bones and teeth) made between calcium (Ca) and phosphate (PO₄)^3-ions.