Galvanic cell (open class)

Galvanic cell converts

• Chemical energy into electrical energy

• Electrical energy into chemical energy

• a metal from its elemental form to combined form

• Electrolyte into individual ions

In a Galvanic Cell, the anode is...

• positive

• negative

What is an anode?

• 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.

In a Galvanic Cell, the cathode is...

• positive

• negative

Reduction occurs at the...

• anode

• cathode

What is the direction of electron flow.

• From Zn to Cu through the external circuit

• From Zn to Cu through salt bridge

• From Cu to Zn through the external circuit

• From Cu to Zn through salt bridge

In a Galvanic cell, the electrons flow from the...

• anode to the cathode

• cathode to the anode

In a Galvanic Cell, the salt bridge...

• completes the circuit so that electrons can flow through the wire

• maintains charge balance

• is soaked in an unreactive electrolyte such as KCl

• all of the above

In the above Galvanic Cell, which half cell is undergoing reduction?

• Cu | Cu²⁺

• Zn | Zn²⁺

Consider the galvanic cell reaction Zn (s) + Cu²⁺ (aq) → Cu (s) + Zn²⁺ (aq) When the cell is running spontaneously, which is the only true statement?

• The copper electrode loses mass and the zinc electrode is the cathode.

• The copper electrode gains mass and the copper electrode is the cathode.

• The zinc electrode gains mass and the zinc electrode is the anode.

• The zinc electrode loses mass and the zinc electrode is the cathode.