Electrochemistry

WHICH WAY DO THE ELECTRON FLOW IN A GALVANIC CELL

• CATHODE TO ANODE

• POSITIVE TO NEGATIVE TERMINAL

• ANODE TO CATHODE

• NEGATIVE TO POSITIVE TERMINAL

ANOTHER NAME FOR A SPONTANEOUS ELECTROCHEMICAL CELL

• SALT BRIDGE

• VOLTMETER

• ELECTROLYSIS CELL

• VOLTAIC CELL

WHAT DOES THE SALT BRIDGE/POROUS POT USED FOR?

• ALLOW FLOW OF CHARGE

• ALLOW MOVEMENT OF ELECTRON

• ALLOW MOVEMENT OF IONS

• TO COMPLETE THE CIRCUIT

In a Galvanic Cell, the anode is...

• positive

• negative

E_cell =

• E_red - E_ox

• E_red + E_ox

• E_ox - E_red

• E_ox + E_red

A certain galvanic cell has for its spontaneous cell reaction: Zn + HgO → ZnO + Hg

Which is the half-reaction occurring at the anode?

• HgO + 2 e- → Hg + O^2-

• Zn²⁺ + 2 e- → Zn

• Zn → Zn²⁺ + 2 e-

• ZnO + 2 e- → Zn

Consider the galvanic cell given.
Which of the following deductions about this cell is correct?

• Oxidation is occurring in half-cell 2
• The positive electrode is in half-cell 2
• Oxidation is occurring in half-cell 1
• The negative electrode is in half-cell 1

In a Galvanic cell, the anions from the salt bridge flow towards;

• anode

• cathode

• both electrodes

Reduction occurs at the...

• anode

• cathode

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

• positive

• negative