Question 1

When zinc is plated to iron,the zinc corrodes rather than the iron.Which statement is true?

Accepted Answer

A) Zinc is less reactive than iron 
B) Zinc is more active metal than iron 
C) Zinc is a better oxidizing agent than iron 
D) Iron is a better reducing agent than zinc 
E) Both metals are Lewis metals 
A) Zinc is less reactive than iron 
B) Zinc is more active metal than iron 
C) Zinc is a better oxidizing agent than iron 
D) Iron is a better reducing agent than zinc 
E) Both metals are Lewis metals

Question 2

Which of the following is a reduction reaction?

Accepted Answer

A) Conversion of 2 Cl- to Cl2 
B) Conversion of copper(I) ions into copper(II) ions 
C) Conversion of Ag+ into Ag 
D) Conversion of Al3+ to Al 
E) Conversion of plutonium into uranium 
A) Conversion of 2 Cl- to Cl2 
B) Conversion of copper(I) ions into copper(II) ions 
C) Conversion of Ag+ into Ag 
D) Conversion of Al3+ to Al 
E) Conversion of plutonium into uranium

Question 3

Examine the two beakers shown below.   
If the metals were connected by a wire containing a meter and the two solutions by a salt bridge,the meter shows are reading of 0.95 V.Which of the following is correct?

Accepted Answer

A) A spontaneous reaction occurs. 
B) A voltaic cell has been constructed. 
C) Electrons flow from the anode to the cathode. 
D) Reduction occurs at the cathode. 
E) All of the above are correct in this situation. 
A) A spontaneous reaction occurs. 
B) A voltaic cell has been constructed. 
C) Electrons flow from the anode to the cathode. 
D) Reduction occurs at the cathode. 
E) All of the above are correct in this situation.

Question 4

What is the reducing agent in the reaction of hydrazine as a rocket fuel: N2H4(   )+ O2(g)   N2(g)+ 2 H2O(   )?

Accepted Answer

A) N2H4 
B) O2 
C) N2 
D) H2O 
E) There is no reducing agent in this reaction 
A) N2H4 
B) O2 
C) N2 
D) H2O 
E) There is no reducing agent in this reaction

Question 5

What is the oxidation number of sulfur in sulfite ion,SO32-?

Accepted Answer

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

When zinc is plated to iron,the zinc corrodes rather than the iron.Which statement is true?

Which of the following is a reduction reaction?

Examine the two beakers shown below. If the metals were connected by a wire containing a meter and the two solutions by a salt bridge,the meter shows are reading of 0.95 V.Which of the following is correct?

What is the reducing agent in the reaction of hydrazine as a rocket fuel: N₂H₄( )+ O₂(g) N₂(g)+ 2 H₂O( )?

What is the oxidation number of sulfur in sulfite ion,SO₃^2-?

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: The Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Atomic Theory: The Quantum Model of the Atom

Chemical Bonding

Structure and Shape

The Ideal Gas Law and Its Applications

Gases, Liquids, and Solids

Solutions

Acidbase Proton Transferreactions

Chemical Equilibrium

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 19: Oxidationreduction Electron Transferreactions

When zinc is plated to iron,the zinc corrodes rather than the iron.Which statement is true?

Which of the following is a reduction reaction?

Examine the two beakers shown below. If the metals were connected by a wire containing a meter and the two solutions by a salt bridge,the meter shows are reading of 0.95 V.Which of the following is correct?

What is the reducing agent in the reaction of hydrazine as a rocket fuel: N2H4( )+ O2(g) N2(g)+ 2 H2O( )?

What is the oxidation number of sulfur in sulfite ion,SO32-?

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: The Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Atomic Theory: The Quantum Model of the Atom

Chemical Bonding

Structure and Shape

The Ideal Gas Law and Its Applications

Gases, Liquids, and Solids

Solutions

Acidbase Proton Transferreactions

Chemical Equilibrium

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

What is the reducing agent in the reaction of hydrazine as a rocket fuel: N₂H₄( )+ O₂(g) N₂(g)+ 2 H₂O( )?

What is the oxidation number of sulfur in sulfite ion,SO₃^2-?