Question 1

Which of these substances is the reducing agent?
Fe2O3 + 3CO → 2Fe + CO2

Accepted Answer

A) Fe2O3 
B) CO 
C) 2Fe 
D) C 
E) O2 
A) Fe2O3 
B) CO 
C) 2Fe 
D) C 
E) O2

Question 2

Which of these equations correctly represents the Haber process?

Accepted Answer

A) 3H2 + N2 → 2NH3 
B) Cu2O + C → 2Cu + CO 
C) Fe2O3 + 3CO → 2Fe + CO2 
D) C6H12O6 + 6O2 → 6CO2 + 6H2O 
E) 6CO2 + 6H2O → C6H12O6 + 6O2 
A) 3H2 + N2 → 2NH3 
B) Cu2O + C → 2Cu + CO 
C) Fe2O3 + 3CO → 2Fe + CO2 
D) C6H12O6 + 6O2 → 6CO2 + 6H2O 
E) 6CO2 + 6H2O → C6H12O6 + 6O2

Question 3

During photosynthesis ____ is ____ to form glucose and oxygen.

Accepted Answer

A) carbon, oxidized 
B) carbon , reduced 
C) water, reduced 
D) hydrogen, oxidized 
E) oxygen, reduced 
A) carbon, oxidized 
B) carbon , reduced 
C) water, reduced 
D) hydrogen, oxidized 
E) oxygen, reduced

Question 4

Free radicals  _____.

Accepted Answer

A) are very reactive 
B) are very unstable 
C) contribute to aging in humans 
D) can alter biological molecules 
E) all of the above 
A) are very reactive 
B) are very unstable 
C) contribute to aging in humans 
D) can alter biological molecules 
E) all of the above

Question 5

Which statement is incorrect ?

Accepted Answer

A) Zinc is used for galvanization because it loses electrons more easily than iron. 
B) Zinc is used for galvanization because it forms a film that protects the iron. 
C) Zinc is used for galvanization because it cannot be oxidized. 
D) None of the above. 
A) Zinc is used for galvanization because it loses electrons more easily than iron. 
B) Zinc is used for galvanization because it forms a film that protects the iron. 
C) Zinc is used for galvanization because it cannot be oxidized. 
D) None of the above.

Question 6

Which of these is a characteristic associated with oxidation?
I. Gaining electrons
II. Losing hydrogen
III. Losing oxygen

Accepted Answer

A) I only 
B) II only 
C) I and II 
D) II and III 
E) I, II, III 
A) I only 
B) II only 
C) I and II 
D) II and III 
E) I, II, III

Which of these substances is the reducing agent? Fe₂O₃ + 3CO → 2Fe + CO₂

Which of these equations correctly represents the Haber process?

During photosynthesis is to form glucose and oxygen.

Free radicals _____.

Which statement is incorrect ?

Which of these is a characteristic associated with oxidation? I. Gaining electrons II. Losing hydrogen III. Losing oxygen

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology

Filters

Exam 14: Oxidation and Reduction

Which of these substances is the reducing agent? Fe2O3 + 3CO → 2Fe + CO2

Which of these equations correctly represents the Haber process?

During photosynthesis ____ is ____ to form glucose and oxygen.

Free radicals _____.

Which statement is incorrect ?

Which of these is a characteristic associated with oxidation? I. Gaining electrons II. Losing hydrogen III. Losing oxygen

Molecular Reasons

The Chemists Toolbox

Atoms and Elements

Molecules, Compounds, and Chemical Reactions

Chemical Bonding

Organic Chemistry

Light and Color

Nuclear Chemistry

Energy for Today

Energy for Tomorrow: Solar and Other Renewable Energy Sources

The Air Around Us

The Liquids and Solids Around Us: Especially Water

Acids and Bases: the Molecules Responsible for Sour and Bitter

The Chemistry of Household Products

Biochemistry and Biotechnology

Drugs and Medicine: Healing, Helping, and Hurting

The Chemistry of Food

Nanotechnology

Filters

Which of these substances is the reducing agent? Fe₂O₃ + 3CO → 2Fe + CO₂

During photosynthesis is to form glucose and oxygen.