GALVANIC CELLS KEY TERMS AND CONCEPTS
CONCEPTS
Students will know:
· A galvanic cell consists of two separate half-cells. A wire connects the electrodes. A salt bridge connects the solutions.
· In a galvanic cell, reduction occurs at the cathode (the positive electrode) and the oxidation occurs at the anode (the negative electrode).
· The stronger oxidizing agent is reduced at the cathode. The stronger reducing agent is oxidized at the anode.
· As the cell operates, electrons travel from the anode to the cathode via the external circuit (the wire). Ions flow through the salt bridge to keep the solutions electrically neutral (anions to anode, cations to cathode).
· A galvanic cell consists of two separate half-cells. A wire connects the electrodes. A salt bridge connects the solutions.
· In a galvanic cell, reduction occurs at the cathode (the positive electrode) and the oxidation occurs at the anode (the negative electrode).
· The stronger oxidizing agent is reduced at the cathode. The stronger reducing agent is oxidized at the anode.
· As the cell operates, electrons travel from the anode to the cathode via the external circuit (the wire). Ions flow through the salt bridge to keep the solutions electrically neutral (anions to anode, cations to cathode).
KEY TERMS
Half-Cell:
An electrode and an electrolyte that from half of a complete cell.
Electrode:
A solid electrical conductor.
Cell:
A system in which two connected electrodes are in contact with an electrolyte.
Salt Bridge:
A tube that contains an electrolyte solution and connects the two half-cells in a galvanic cell.
Voltaic Cell:
Also known as a galvanic cell.
Galvanic Cell:
An arrangement of two connected half-cells that spontaneously produces electric current.
Anode:
The electrode where oxidation occurs.
Cathode:
The electrode where reduction occurs.
Line Notation:
An abbreviated way to describe cells.
Voltmeter:
An instrument for measuring electric potential in volts.
An electrode and an electrolyte that from half of a complete cell.
Electrode:
A solid electrical conductor.
Cell:
A system in which two connected electrodes are in contact with an electrolyte.
Salt Bridge:
A tube that contains an electrolyte solution and connects the two half-cells in a galvanic cell.
Voltaic Cell:
Also known as a galvanic cell.
Galvanic Cell:
An arrangement of two connected half-cells that spontaneously produces electric current.
Anode:
The electrode where oxidation occurs.
Cathode:
The electrode where reduction occurs.
Line Notation:
An abbreviated way to describe cells.
Voltmeter:
An instrument for measuring electric potential in volts.
References
- Di Guiseppe, M., Haberer, S., Salciccioli, K., Sanader, M, Vavitsas, A. (2012) Chemistry 12. Toronto: Nelson Education Ltd.
- van Kessel, H., Jenkins, F., Davies, L., Plumb, D., Di Guiseppe, M., Lantz, O., Tompkins, D. (2003). Chemistry 12. Toronto: Thomson Canada Limited.
- http://www.wikipedia.org