Galvanic Cell

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

A certain galvanic cell has for its spontaneous cell reaction: Zn + HgO → ZnO + Hg Which is the half-reaction occurring at the cathode?

• HgO + 2 e- → Hg + O^2-

• Hg → Hg²⁺ + 2 e-

• Zn → Zn²⁺ + 2 e-

• ZnO + 2 e- → Zn

Tags

NGSS.HS-PS1-2

Reduction occurs at the...

• anode

• cathode

E_cell =

• E_red - E_ox

• E_red + E_ox

• E_ox - E_red

• E_ox + E_red

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

Tags

NGSS.HS-PS2-5

Reactions in galvanic cells are

• spontaneous, redox reactions

• non-spontaneous, redox reactions

• spontaneous, non-redox reactions

• non-spontaneous, non-redox reactions

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

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

• anode

• cathode

• both electrodes

A galvanic cell is established to power a torch, as shown.
For this cell, the

• electrons will flow from the aluminium to the hydrogen half-cell

• aluminium electrode will be the positive anode

• concentration of aluminium ions in solution will be falling

• hydrogen half-cell will be the negative cathode

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-4

Which energy conversion shown below takes place in an electrochemical cell?

• Electrical to chemical

• Mechanical to chemical

• Mechanical to electrical

• Chemical to electrical

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-5

A VCE chemistry student sets up a galvanic cell using two standard half-cells with half reactions.
Half-cell 1: Cr³⁺(aq)+e^-→Cr²⁺(aq)
Half-cell 2: Cr(s)→Cr²⁺(aq)+2e^-
Sutable materials for the electrodes of te two half-cells are

• Half-cell 1: Platinum; Half-cell 2: Platinum

• Half-cell 1: Platinum; Half-cell 2: Chromium

• Half-cell 1: Chromium; Half-cell 2: Chromium

• Half-cell 1: Chromium; Half-cell 2: Platinum