Question 1

Silver is plated on copper by immersing a piece of copper into a solution containing silver ions. In the plating reaction, copper

Accepted Answer

A)  is oxidized and is the oxidizing agent. 
B)  is oxidized and is the reducing agent. 
C)  is reduced and is the oxidizing agent. 
D)  is reduced and is the reducing agent. 
A)  is oxidized and is the oxidizing agent. 
B)  is oxidized and is the reducing agent. 
C)  is reduced and is the oxidizing agent. 
D)  is reduced and is the reducing agent.

Question 2

The chemical basis of converting light into a photographic silver image is based on the fact that

Accepted Answer

A)  Ag+ exposed to light is easier to reduce to Ag than unexposed Ag+. 
B)  Ag+ exposed to light is more difficult to reduce to Ag than unexposed Ag+. 
C)  Ag+ exposed to light is easier to oxidize to Ag than unexposed Ag+. 
D)  Ag+ exposed to light is more difficult to oxidize to Ag than unexposed Ag+. 
A)  Ag+ exposed to light is easier to reduce to Ag than unexposed Ag+. 
B)  Ag+ exposed to light is more difficult to reduce to Ag than unexposed Ag+. 
C)  Ag+ exposed to light is easier to oxidize to Ag than unexposed Ag+. 
D)  Ag+ exposed to light is more difficult to oxidize to Ag than unexposed Ag+.

Question 3

In an electrochemical cell, oxidation takes place at the cathode.

Accepted Answer

A) True 
 B)False

Question 4

A battery is a device that converts chemical energy into

Accepted Answer

A)  electrical energy. 
B)  chemical energy. 
C)  nuclear energy. 
D)  light energy. 
A)  electrical energy. 
B)  chemical energy. 
C)  nuclear energy. 
D)  light energy.

Question 5

A major advantage of lead storage batteries is that they are

Accepted Answer

A)  lightweight. 
B)  rechargeable. 
C)  disposable. 
D)  all of the above 
A)  lightweight. 
B)  rechargeable. 
C)  disposable. 
D)  all of the above

Question 6

An oxidizing agent is reduced.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is a definition of oxidation?

Accepted Answer

A)  Oxidation is the loss of electrons. 
B)  Oxidation is the addition of hydrogen. 
C)  Oxidation is the loss of oxygen. 
D)  Oxidation is the addition of electrons. 
A)  Oxidation is the loss of electrons. 
B)  Oxidation is the addition of hydrogen. 
C)  Oxidation is the loss of oxygen. 
D)  Oxidation is the addition of electrons.

Question 8

All of the following are true for green oxidation catalysts EXCEPT

Accepted Answer

A)  they are often carcinogenic. 
B)  they often rely on transition metals. 
C)  they often allow reactions to run at lower temperatures. 
D)  they are more efficient than traditional catalysts. 
A)  they are often carcinogenic. 
B)  they often rely on transition metals. 
C)  they often allow reactions to run at lower temperatures. 
D)  they are more efficient than traditional catalysts.

Question 9

A device that generates an electrical current by taking advantage of a difference in the spontaneous tendency of substances to lose and gain electrons is called an

Accepted Answer

A)  electrochemical cell. 
B)  electrolysis cell. 
C)  electroplating cell. 
D)  electrolyte cell. 
A)  electrochemical cell. 
B)  electrolysis cell. 
C)  electroplating cell. 
D)  electrolyte cell.

Question 10

Many traditional oxidation methods are environmentally harmful.

Accepted Answer

A) True 
 B)False

Question 11

Swimming pools are "chlorinated" in order to

Accepted Answer

A)  improve taste of the water. 
B)  disinfect the water. 
C)  clarify the water. 
D)  purify the water. 
A)  improve taste of the water. 
B)  disinfect the water. 
C)  clarify the water. 
D)  purify the water.

Question 12

Antioxidants are

Accepted Answer

A)  oxidizing agents found in foods. 
B)  reducing agents found in foods. 
C)  fat-soluble. 
D)  water soluble. 
A)  oxidizing agents found in foods. 
B)  reducing agents found in foods. 
C)  fat-soluble. 
D)  water soluble.

Question 13

Specialty chemicals are generally much simpler than industrial chemicals.

Accepted Answer

A) True 
 B)False

Question 14

When your car rusts, the major chemical reaction is between the iron from the steel in the car body with the oxygen from the air to form iron(III) oxide. Write and balance the chemical equation.

Accepted Answer

The answer of When your car rusts, the major chemical...

Question 15

In the reaction Fe2O3 + 3 H2 → 2 Fe + 3 H2O, the reducing agent is

Accepted Answer

A)  Fe2O3. 
B)  H2. 
C)  Fe. 
D)  H2O. 
A)  Fe2O3. 
B)  H2. 
C)  Fe. 
D)  H2O.

Question 16

When a metal reacts with a nonmetal, the metal is oxidized.

Accepted Answer

A) True 
 B)False

Question 17

Hydrogen gas converts tungsten oxide to tungsten metal. Hydrogen (H2) is a(n)

Accepted Answer

A)  acid. 
B)  base. 
C)  oxidizing agent. 
D)  reducing agent. 
A)  acid. 
B)  base. 
C)  oxidizing agent. 
D)  reducing agent.

Question 18

When hydrogen is added to a compound, which of the following can act as a catalyst?

Accepted Answer

A)  P 
B)  C 
C)  S 
D)  Pd 
A)  P 
B)  C 
C)  S 
D)  Pd

Question 19

________ is used as an explosive and a heart medication.

Accepted Answer

A)  Nitroglycerin 
B)  Trinitrotoluene 
C)  Ammonia nitrate 
D)  Urea 
A)  Nitroglycerin 
B)  Trinitrotoluene 
C)  Ammonia nitrate 
D)  Urea

Question 20

Which of the following is NOT true of hydrogen?

Accepted Answer

A)  It can form an ion with a +1 charge. 
B)  It can form an ion with a -1 charge. 
C)  It is usually found as free hydrogen and not combined with other elements. 
D)  It is a colorless, odorless gas. 
A)  It can form an ion with a +1 charge. 
B)  It can form an ion with a -1 charge. 
C)  It is usually found as free hydrogen and not combined with other elements. 
D)  It is a colorless, odorless gas.

Exam 8: Oxidation and Reduction

Silver is plated on copper by immersing a piece of copper into a solution containing silver ions. In the plating reaction, copper

The chemical basis of converting light into a photographic silver image is based on the fact that

In an electrochemical cell, oxidation takes place at the cathode.

A battery is a device that converts chemical energy into

A major advantage of lead storage batteries is that they are

An oxidizing agent is reduced.

Which of the following is a definition of oxidation?

All of the following are true for green oxidation catalysts EXCEPT

A device that generates an electrical current by taking advantage of a difference in the spontaneous tendency of substances to lose and gain electrons is called an

Many traditional oxidation methods are environmentally harmful.

Swimming pools are "chlorinated" in order to

Antioxidants are

Specialty chemicals are generally much simpler than industrial chemicals.

When your car rusts, the major chemical reaction is between the iron from the steel in the car body with the oxygen from the air to form iron(III) oxide. Write and balance the chemical equation.

In the reaction Fe2O3 + 3 H2 → 2 Fe + 3 H2O, the reducing agent is

When a metal reacts with a nonmetal, the metal is oxidized.

Hydrogen gas converts tungsten oxide to tungsten metal. Hydrogen (H2) is a(n)

When hydrogen is added to a compound, which of the following can act as a catalyst?

________ is used as an explosive and a heart medication.

Which of the following is NOT true of hydrogen?

Chemistry

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In the reaction Fe₂O₃ + 3 H₂ → 2 Fe + 3 H₂O, the reducing agent is

Hydrogen gas converts tungsten oxide to tungsten metal. Hydrogen (H₂) is a(n)