| A | B |
|---|
| oxidation | loss of electrons |
| reduction | gain of electrons |
| electrolyte | substance with the capacity to transfer and electric current |
| volt | unit of electrical potential |
| ohm | unit of electrical resistance |
| ampere | unit of electrical current |
| anode | negative electrode in an electrochemical cell |
| cathode | positive electrode in an electrochemical cell |
| anode process in electrochemical cell | oxidation |
| cathode process in electrochemical cell | reduction |
| half cell | part of an electrochemical cell with an electrode and electrolyte and one end of the salt bridge |
| salt bridge | a hollow tube or gel containing an electrolyte different from the electrolytes of the half cells, allows the current to flow continuously through the wet cell |
| electrodes | metal strips, plates or bars in an electrochemical cell |
| dry cell | electrochemical cell in which the electrolyte is a paste |
| battery | two or more electrochemical cells joined together |
| series connection | + to - connected, increases voltage |
| parallel connection | + to +, - to - connection, amperage increases |
| fuel cells | cells with renewable electrodes |
| coulomb | unit measuring the size of an electrical charge |
| one coulomb of charge | 6.24 x 10^18 electrons |
| EMF | electromotive force, volts |
| Galvanometer | device for detecting small amounts of current |
| Ammeter | device that measures amount of electric current |
| Voltmeter | device for measuring the amount of electrical potential |
