Question 1

What is the oxidation state of sulfur in SO32-?

Accepted Answer

A) 0 
B) -2 
C) +3 
D) +4 
E) +6 
A) 0 
B) -2 
C) +3 
D) +4 
E) +6

Question 2

Balance the redox reaction in acid solution:  
(l)

Accepted Answer

A) 4  
+

2- + 7
  
→ 2
  
+ 2
  
+ 7
  
O 
B) 6  
+

2- + 14
  
→ 2
  
+ 3
  
+ 7
  
O 
C) 2  
+

2- + 14
  
→ 2
  
+
  
+ 7
  
O 
D) 2  
+ 2

2- + 14
  
→ 4
  
+
  
+ 14
  
O 
E) none of the above 
A) 4  
+

2- + 7
  
→ 2
  
+ 2
  
+ 7
  
O 
B) 6  
+

2- + 14
  
→ 2
  
+ 3
  
+ 7
  
O 
C) 2  
+

2- + 14
  
→ 2
  
+
  
+ 7
  
O 
D) 2  
+ 2

2- + 14
  
→ 4
  
+
  
+ 14
  
O 
E) none of the above

Question 3

Examine the activity list given below to answer this question: Which element is most easily oxidized,Mg ,Cu,or K ?
Activity Series =  
Cu(s)→  
(aq)+ 2 e-

Accepted Answer

A) Mg 
B) Cu 
C) K 
D) all of these elements oxidize equally well 
E) none of these elements can be oxidized 
A) Mg 
B) Cu 
C) K 
D) all of these elements oxidize equally well 
E) none of these elements can be oxidized

Question 4

Fuel cells are based on the tendency of some elements to gain electrons from gasoline.

Accepted Answer

A) True 
 B)False

Question 5

If you properly balance the following half reaction in acid solution,how many electrons would appear on the product side of the equation? NO (g)→ NO31- (aq)

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 5 
E) none of the above 
A) 1 
B) 2 
C) 3 
D) 5 
E) none of the above

Question 6

From the activity list included in this problem,which element/ion will spontaneously react with Ca?
Activity Series =

Accepted Answer

A) Na 
B)    
C)    
D) Li 
E)    
A) Na 
B)    
C)    
D) Li 
E)

Question 7

What is the oxidation state of nitrogen in N2O3?

Accepted Answer

A) 0 
B) +1 
C) +2 
D) +3 
E) +6 
A) 0 
B) +1 
C) +2 
D) +3 
E) +6

Question 8

In which compound does manganese have the highest oxidation state?

Accepted Answer

A) Mn 
B) Mn2O3 
C) KMnO4 
D) MnO2 
E) none of the above 
A) Mn 
B) Mn2O3 
C) KMnO4 
D) MnO2 
E) none of the above

Question 9

The sum of the oxidation numbers of all atoms in K2Cr2O7 equals zero.

Accepted Answer

A) True 
 B)False

Question 10

Which battery system is based on half reactions involving zinc metal and manganese dioxide?

Accepted Answer

A) alkaline batteries 
B) fuel cells 
C) lead-acid storage batteries 
D) dry-cell batteries 
E) none of the above 
A) alkaline batteries 
B) fuel cells 
C) lead-acid storage batteries 
D) dry-cell batteries 
E) none of the above

Question 11

Gold metal is found at the bottom of the activity series of metals since it is the most difficult metal to oxidize.

Accepted Answer

A) True 
 B)False

Question 12

The substance being reduced is the oxidizing agent while the substance being oxidized is the reducing agent.

Accepted Answer

A) True 
 B)False

Question 13

Corrosion is the:

Accepted Answer

A) oxidation of nonmetals. 
B) loss of electrons. 
C) oxidation of metals. 
D) formation of an insoluble hydroxide. 
E) none of the above 
A) oxidation of nonmetals. 
B) loss of electrons. 
C) oxidation of metals. 
D) formation of an insoluble hydroxide. 
E) none of the above

What is the oxidation state of sulfur in SO₃^2-?

Balance the redox reaction in acid solution: (l)

Examine the activity list given below to answer this question: Which element is most easily oxidized,Mg ,Cu,or K ? Activity Series = Cu(s)→ (aq)+ 2 e^-

Fuel cells are based on the tendency of some elements to gain electrons from gasoline.

If you properly balance the following half reaction in acid solution,how many electrons would appear on the product side of the equation? NO (g)→ NO₃^1- (aq)

From the activity list included in this problem,which element/ion will spontaneously react with Ca? Activity Series =

What is the oxidation state of nitrogen in N₂O₃?

In which compound does manganese have the highest oxidation state?

The sum of the oxidation numbers of all atoms in K₂Cr₂O₇ equals zero.

Which battery system is based on half reactions involving zinc metal and manganese dioxide?

Gold metal is found at the bottom of the activity series of metals since it is the most difficult metal to oxidize.

The substance being reduced is the oxidizing agent while the substance being oxidized is the reducing agent.

Corrosion is the:

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Chemical Composition

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Electrons in Atoms and the Periodic Table

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Exam 16: Oxidation and Reduction

What is the oxidation state of sulfur in SO32-?

Balance the redox reaction in acid solution: (l)

Examine the activity list given below to answer this question: Which element is most easily oxidized,Mg ,Cu,or K ? Activity Series = Cu(s)→ (aq)+ 2 e-

Fuel cells are based on the tendency of some elements to gain electrons from gasoline.

If you properly balance the following half reaction in acid solution,how many electrons would appear on the product side of the equation? NO (g)→ NO31- (aq)

From the activity list included in this problem,which element/ion will spontaneously react with Ca? Activity Series =

What is the oxidation state of nitrogen in N2O3?

In which compound does manganese have the highest oxidation state?

The sum of the oxidation numbers of all atoms in K2Cr2O7 equals zero.

Which battery system is based on half reactions involving zinc metal and manganese dioxide?

Gold metal is found at the bottom of the activity series of metals since it is the most difficult metal to oxidize.

The substance being reduced is the oxidizing agent while the substance being oxidized is the reducing agent.

Corrosion is the:

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids,solids,and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

What is the oxidation state of sulfur in SO₃^2-?

Examine the activity list given below to answer this question: Which element is most easily oxidized,Mg ,Cu,or K ? Activity Series = Cu(s)→ (aq)+ 2 e^-

If you properly balance the following half reaction in acid solution,how many electrons would appear on the product side of the equation? NO (g)→ NO₃^1- (aq)

What is the oxidation state of nitrogen in N₂O₃?

The sum of the oxidation numbers of all atoms in K₂Cr₂O₇ equals zero.