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Unit 9 RedOx
Term | Definition |
---|---|
Oxidation-Reduction Reaction | A reaction that involves the transfer of electrons between reactants |
Voltaic Cell | An electrochemical cell in which a spontaneous chemical reaction causes a flow of electrons |
Electrolytic Cell | A cell that requires electricity to cause a nonspontaneous reaction |
Oxidation | The loss of electrons |
Reduction | The gain of electrons |
Oxidation Number | Number assigned to keep track of electron gain or loss in redox reactions |
Oxidizing Agent | The substance reduced in a redox reaction |
Reducing Agent | The substance oxidized in a redox reaction |
Half-Reaction | A reaction that shows either the oxidation or reduction portion of a redox reaction |
Spontaneous Reaction | reaction that favors the formation of the products without any additional help |
Nonspontaneous Reaction | A reaction that does not favor the formation of the products without additional help |
Electrode | The site at which oxidation or reduction occurs |
Anode | The site where oxidation occurs |
Cathode | The site where reduction occurs |
Salt Bridge | art of a voltaic cell that connects two containers and allows the flow of ions |