Electrochemistry

In a voltaic cell, electrons flow spontaneously from

• Cathode to anode

• Salt bridge to anode

• Salt bridge to cathode

• Anode to cathode

Tags

NGSS.HS-PS2-5

Reduction occurs at the...

• anode

• cathode

In a Galvanic Cell, the anode species...

• loses mass over the course of the rxn

• gains mass over the course of the rxn

Tags

NGSS.HS-PS1-7

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

• Cu | Cu²⁺

• Zn | Zn²⁺

In the above Galvanic Cell, to which chamber would the cation from the salt bridge flow?

• To the zinc chamber (the anode)

• To the copper chamber (the cathode)

In the above Galvanic Cell, what would be the oxidation half-reaction?

• Cu(s) --> Cu2+ + 2e-

• Zn2+ + 2e- --> Zn(s)

• Zn(s) --> Zn2+ + 2e-

• Cu2+ + 2e- --> Cu(s)

Tags

NGSS.HS-PS1-7

If an electrochemical reaction is spontaneous, what will E_cell be?

• positive

• negative