Balancing Oxidation-Reduction Equations Answers

16 verified answers4 views
2
Free Preview

What describes the change in oxidation states of the following reaction?

Question illustration
A
Cl– reduces to Cl and F oxidizes to F–.
B
Cl– oxidizes to Cl and F reduces to F–.
C
Cl– is the reducing agent and F is the oxidizing agent.
D
Cl is the reducing agent and F– is the oxidizing agent.
3

Zn(s) + 2H+(aq) Zn2+(aq) + H2(g) has an overall reduction potential of 0.76 V. Therefore,

Question illustration
A
the reaction is not spontaneous and will require energy to proceed.
B
the reaction is spontaneous and will proceed without any energy input.
C
the reduction potentials cancel out and prevent any reaction.
D
the forward and reverse reactions are each spontaneous.
4

Disproportionation is a process in which a substance

A
can act only as a reducing agent.
B
can act only as an oxidizing agent.
C
is both an oxidizing and a reducing agent.
D
is neither an oxidizing nor a reducing agent.
6

What is the reducing agent in the following reaction?Cr3+ + 3Na 3Na+ + Cr

Question illustration
A
Cr3+ because it loses electrons
B
Na because it loses electrons
C
Cr3+ because it gains electrons
D
Na because it gains electrons
8

Which type of reaction occurs in the following equation?3ClO(aq) ClO(aq) + 2Cl(aq)

Question illustration
A
an oxidation reaction
B
a reduction reaction
C
a synthesis reaction
D
a disproportionation reaction
9

Consider the following equilibrium reaction.Ni2+(aq) + Sn(s) Ni(s) + Sn2+(aq)The forward reaction is non-spontaneous. What does this indicate about the relative strengths of the reducing and oxidizing agents on each side of the equation?

Question illustration
A
The agents are of equal strength on both sides of the equation.
B
The stronger agents are on the left side of the equation.
C
The stronger agents are on the right side of the equation.
D
The relative strengths of the agents cannot be inferred.
11

Gold (Au) goes from an oxidation number of +3 to 0 in the reaction below.2Au3+ + 6I– 2Au + 3I2What describes the Au3+ ion?

Question illustration
A
It is the result of oxidation.
B
It the result of disproportionation.
C
It is the oxidizing agent.
D
It is the reducing agent.
13

During a redox reaction, the term reduction refers to

A
the gain of electrons.
B
the loss of electrons.
C
the gain of protons.
D
the loss of protons.
14

In a disproportionation reaction, the disproportionate substance

A
has exactly one oxidation state.
B
has exactly two oxidation states.
C
has at least three oxidation states.
D
has either one or two oxidation states.
16

Which type of reaction occurs in the following equation? 2NO2(g) + 2OH(aq) NO(aq) + NO(aq) + H2O(l)

Question illustration
A
a combination redox reaction
B
a displacement redox reaction
C
a synthetic redox reaction
D
a disproportionation redox reaction

Did you find these answers helpful?