ELECTROLYSIS

What is the name of positive electrode?

• Anode

• Cathode

The positively charged ions are attracted to the_?

• Cathode

• Anode

What is oxidizing agents?

• Gets reduced and makes other oxidized.

• Gets oxidize and reduce others.

Electrolysis is a redox equation?

• False

• True

The diagram shows the electrolysis of lead(II) bromide using inert electrodes. Why does the bulb only light up when the lead(II) bromide is melted?

• There are no ions in solid lead(II) bromide

• Electrons flow through the lead(II) bromide when it is melted

• The ions in lead(II) bromide are mobile charge carriers in the molten state.

Anions get discharged by___electrons at the___

• gaining, cathode

• gaining, anode

• losing, anode

• losing, cathode

What is the gas produced at the anode during the electrolysis of very dilute hydrochloric acid?

• oxygen

• chlorine

• water

• hydrogen

Positive ions (cations) move towards the cathode (-) where they will discharge by___

• Breaking apart

• Gaining electrons

• Clumping together.

• Losing electrons

What is the half-equation for the discharge of hydroxide ions?

• 2O^2- --> O₂ + 4e^-

• 4OH^- --> 2H₂O + O₂ + 4e^-

• OH^- --> OH + e

What factors do not affect the products of electrolysis in the electrolysis of aqueous magnesium chloride using graphite electrodes?

• concentration of ions in the solution

• type of electrodes

• position of ions in the electrochemical series