Electrolysis and Cell Potentials Quiz

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What is the process in which electrical energy is used to produce a chemical change that would not otherwise occur?

Electrolysis (correct)

Extraction

Oxidation-reduction reaction

Refining

What type of cell consumes electrical energy to drive a non-spontaneous redox reaction?

Voltaic cell

Electrolytic cell (correct)

Electrochemical cell

Galvanic cell

According to Faraday’s Law of Electrolysis, what is the weight of products formed during electrolysis proportional to?

The current sent through the electrolyte (correct)

The size of the electrodes

The voltage applied

The concentration of the electrolyte

What is the purpose of purifying metallic copper using electrolysis?

To increase the conductivity of copper wires Signup and view all the answers

What type of reaction is used in extracting, purifying, or cleaning metals through electrolysis?

Oxidation-reduction reaction Signup and view all the answers

What is the name of the law that states the weight of products formed during electrolysis is proportional to the current sent through the electrolyte?

Faraday's Law of Electrolysis Signup and view all the answers

What is the process of using electricity to decompose water into oxygen and hydrogen gas known as?

Electrochemical water splitting Signup and view all the answers

In electroplating, what acts as the cathode?

The metal spoon Signup and view all the answers

What is the net result when electric current is passed through the silver nitrate solution in electroplating?

Silver metal is removed from the anode and deposited on the spoon Signup and view all the answers

What is the process of removing metal by an electrochemical process known as?

Electrochemical machining Signup and view all the answers

In the electrolysis of water, what is produced at the cathode?

Hydrogen gas Signup and view all the answers

What is known as anode mud in the electrolysis of water?

Impurities from the metal Signup and view all the answers

What is left behind when metallic copper dissolves into solution as copper(II) ions?

Impurities from the metal Signup and view all the answers

What must pass between the electrodes to cause a nonspontaneous reaction to occur?

$e^-$ (electrons) Signup and view all the answers

In the electrolysis of water, what happens at the anode?

$O_2$ (oxygen gas) production Signup and view all the answers

In the reaction at the cathode during silver-plating of metal spoons, what is produced?

Ag (s) Signup and view all the answers

Electrolysis and Cell Potentials Quiz

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