Electrolytic Cells

What happens at the positive electrode in a voltaic cell and in an electrolytic cell?

• A
• B
• C
• D

What are produced at positive/negative electrodes during electrolysis of molten NaCI?

• A
• B
• C
• D

Which factors affect amount of metal formed during electrolysis?

• I and II
• I and III
• II and III
• I, II and III

What occurs during electrolysis of a molten salt?

• Electricity is produced by a spontaneous redox reaction
• Electricity cause a non-spontaneous redox reaction to occur
• Electrons flow through the molten salt
• Electrons are removed from both ions of the molten salt

Tags

NGSS.HS-PS2-5

NGSS.HS-PS1-4

Object is electroplated with copper using copper(II) sulfate. Which statement is correct?

• Positive electrode increases in mass
• Concentration of Cu²⁺ ions in solution decreases
• Reduction occurs at positive electrode
• Reaction at negative electrode is Cu²⁺ + 2e^– → Cu

Tags

NGSS.HS-PS2-5

The ease of discharge of metal ions decreases down the electrochemical series.

• True
• False

What is the name of the positive electrode in an electrolytic cell?

• cathode

• anode

What is the name of the negative electrode in an electrolytic cell ?

• cathode

• anode

The electrode connected to the positive terminal of a battery is __________.

• cathode
• anode

Anion loses electrons at the

• cathode
• anode