In electrolysis of copper purification, at cathode

the object to be electroplated is kept

Galvanic cells convert

chemical energy in to electrical energy

mechanical energy in to electrical energy

potential energy in to electrical energy

electrical energy in to chemical energy

An iron nail is put into a solution of copper nitrate, iron is above copper in the activity series of metals, what will happen?

the iron nail will become copper plated

bubbles of oxygen gas will form on iron nail

If Al is above Co in the activity series of metals, which of the following will occur if Al metal is put into a solution of cobalt nitrate?

the Al strip becomes coated with cobalt

It is the creation of electrons.

It is the destruction of electrons.

It is the creation of electrons.

It is the destruction of electrons.

What is a reducing agent?

It is the species that gets oxidized -- loses electrons.

It is the species that gets reduced -- gains electrons.

It is the species that creates electrons.

It is the species that destroys electrons.

What is an oxidizing agent?

It is the species that gets reduced -- gains electrons.

It is the species that gets oxidized -- loses electrons.

It is the species that creates electrons.

It is the species that loses electrons.

What is a standard half-cell?

It is one cell that comprises half of a whole battery.

It is a cell containing only a metal bar with no aqueous ion solution.

It is a cell containing only an aqueous ion solution and no metal bar.

It is a cell that generates half of a volt of electricity.

What is a galvanic (voltaic) cell?

It is a type of battery that generates an electrical current from redox reactions.

It is a cell that destroys electrons on one side and creates electrons on the other side.

It is a cell that contains only one metal bar and one aqueous ion solution.

It is a type of battery that drives a redox reaction when electricity is applied.

What is a half-reaction?

It shows EITHER the reduction component or the oxidation component of a redox reaction.

It is a reaction at equilibrium where half of the substances are reactants and half of the substances are products.

It is the reaction that occurs when the switch of a galvanic cell is open.

It shows BOTH the reduction and oxidation components of a redox reaction.

It is the electrode where oxidation takes place.

It is the electrode where reduction takes place.

It is an aqueous solution containing an electrode.

It is the salt bridge that connects half-cells.

It is the electrode where reduction takes place.

It is the electrode where oxidation takes place.

It is an aqueous solution containing an electrode.

It is the salt bridge that connects half-cells.

The relationship between chemical reactions and electricity

Study of electricity in molecules

the study of electrons moving from one a tom to another

Nernst equation FOR (i) Mg(s) | Mg 2+ (aq,0.001M) || Al 3+ (aq,0.0001 M) | Al(s)

Ecell=E 0 cell-0.0591/6 log[Mg 2+ ] 3 /[Al 3+ ] 2

Ecell=E 0 cell-0.0591/6 log[Al 3+ ] 2 /[Mg 2+ ] 3

Ecell=E 0 cell + 0.0591/3 log[Mg 2+ ] 3 /[Al 3+ ] 2

Ecell=E 0 cell-0.0591/3 log[Mg 2+ ] /[Al 3+ ]

What happens to Cr 3+ ion when it is converted to CrO 4 2–

Oxidation number increases and it undergo oxidation

Oxidation number decreases and it undergo reduction

Oxidation number decreases and it undergo oxidation

Oxidation number increases and it undergo reduction

Which statement best describes how a salt bridge maintains electrical neutrality in the half-cells of an electrochemical cell?

It permits the migration of ions.

It prevents the migration of electrons.

It prevents the reaction from occurring spontaneously.

It allows for the reaction from occurring spontaneously.

Which of the following is not a similarity between voltaic and electroytic cells?

charges on anode and cathode are the same

electrons flow from anode to cathode

Quiz 3: Electrochemistry

Quiz

•

Chemistry

•

12th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS1-2, HS-PS1-1, HS-PS3-5

+4

Standards-aligned

AZURAH KMM

Used 13+ times

FREE Resource

53 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

An oxidizing agent will

increase in mass

lose electrons

be reduced

increase in oxidation number

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In a redox reaction, the species that loses electrons

is called the cathode

is oxidized

gains mass at the electrode

decreases in oxidation number

Tags

NGSS.HS-PS1-2

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

As an element is oxidized, its oxidation number

decreases as electrons are lost

increases as electrons are lost

decreases as electrons are gained

increases as electrons are gained

Tags

NGSS.HS-PS1-2

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Oxidation-reduction reactions occur because of the competition between particles for

electrons

positrons

protons

neutrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mg + PbCl₂ → MgCl₂ + Pb
Which statement correctly describes the oxidation and reduction that occur?

Mg is oxidized and Pb²⁺is reduced

Mg is oxidized and Cl^- is reduced

Mg is reduced and Cl^- is oxidized

Mg is reduced and Pb²⁺ is oxidized

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the reactions
Sn²⁺(aq) + 2Fe³⁺(aq) -> Sn⁴⁺(aq) + 2Fe²⁺(aq),
the reducing agent is

Fe³⁺

Sn²⁺

Sn⁴⁺

Fe²⁺

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pb(s) + 2Ag⁺(aq)→ Pb²⁺(aq) + 2Ag(s)

The chemical species being reduced is

Ag

Pb

Pb²⁺

Ag⁺

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Quiz 3: Electrochemistry

53 questions

An oxidizing agent will

In a redox reaction, the species that loses electrons

As an element is oxidized, its oxidation number

Oxidation-reduction reactions occur because of the competition between particles for

Mg + PbCl₂ → MgCl₂ + Pb
Which statement correctly describes the oxidation and reduction that occur?

In the reactions
Sn²⁺(aq) + 2Fe³⁺(aq) -> Sn⁴⁺(aq) + 2Fe²⁺(aq),
the reducing agent is

Pb(s) + 2Ag⁺(aq)→ Pb²⁺(aq) + 2Ag(s)

The chemical species being reduced is

If acidified potassium dichromate(VI) (K₂Cr₂O₇) acts as oxidizing agent, color changes from

In electrolysis of copper purification, at cathode

An electrolytic cell uses electrical energy to drive

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Quiz 3: Electrochemistry

53 questions

An oxidizing agent will

In a redox reaction, the species that loses electrons

As an element is oxidized, its oxidation number

Oxidation-reduction reactions occur because of the competition between particles for

Mg + PbCl2 → MgCl2 + PbWhich statement correctly describes the oxidation and reduction that occur?

In the reactionsSn2+(aq) + 2Fe3+(aq) -> Sn4+(aq) + 2Fe2+(aq),the reducing agent is

Pb(s) + 2Ag+(aq)→ Pb2+(aq) + 2Ag(s)The chemical species being reduced is

If acidified potassium dichromate(VI) (K2Cr2O7) acts as oxidizing agent, color changes from

In electrolysis of copper purification, at cathode

An electrolytic cell uses electrical energy to drive

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Chemistry

Mg + PbCl₂ → MgCl₂ + Pb
Which statement correctly describes the oxidation and reduction that occur?

In the reactions
Sn²⁺(aq) + 2Fe³⁺(aq) -> Sn⁴⁺(aq) + 2Fe²⁺(aq),
the reducing agent is

Pb(s) + 2Ag⁺(aq)→ Pb²⁺(aq) + 2Ag(s)

The chemical species being reduced is

If acidified potassium dichromate(VI) (K₂Cr₂O₇) acts as oxidizing agent, color changes from