| A | B |
|---|
| Redox | stands for Reduction-Oxidation reactions |
| Reduction | GAIN of electrons by an atom or ion; oxidation number GOES DOWN/REDUCES |
| Oxidation | LOSS of electrons by an atom or ion; oxidation number GOES UP/INCREASES |
| Oxidation Number | Positive, negative or neutral (zero) values that can be assigned to atoms; identify how many electrons are being lost or gained by an atom/ion when they bond |
| Half reaction | Shows the EXCHANGE of ELECTRONS in a reaction; follows the law of CONSERVATION of MASS and must also have a CONSERVATION of CHARGE |
| Electrode | Conductive surface where oxidation or reduction occurs |
| Voltaic Cell | Similar to a battery; spontaneously coverts CHEMICAL energy into ELECTRICAL energy or electric current |
| Salt bridge | Connects the two half cells and provides a path for the flow of ions between the two containers (this is only part of what completes the circuit) |
| Electrolytic Cell | Cells that use ELECTRICAL ENERGY to force a NONSPONTANEOUS CHEMICAL REACTION to occur; also known as electrolysis |
| Anode | Electrode where electrons are DRAWN AWAY FROM; the POSITIVE electrode; where OXIDATION occurs (AN OX) |
| Cathode | Electrode where electrons are SENT; the NEGATIVE electrode; electrode where REDUCTION occurs (RED CAT) |
| Oxidizing Agent | Substance or species that is REDUCED; substance that helps another substance oxidize |
| Reducing Agent | Substance or species that is OXIDIZED; substance that helps another substance reduce |
