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Regents Chem - Redox

Oxidation LEO or OIL. Loss of electrons. Charge increases
Reduction GER or RIG. Gain of electrons. Charge decreases.
Electrochemical cell device that uses redox reactions to either produce or use electricity
Electrolytic cell not spontaneous. Needs a battery to force a reaction to occur. Could be electroplating or electrolysis of a compound.
Voltaic cell Chemicals spontaneously making electricity. Includes 2 beakers and a salt bridge for mov't of ions.
Salt bridge allows migration of IONS in a voltaic cell.
Wire in electrochemical cell allow movement of ELECTRONS in a voltaic cell.
Table J reactivity table. Metals that want to oxidize are at the TOP and can replace any metal below them.
Anode (an ox) metal piece where oxidation takes place. It is negative in the spontaneous set up and positive when there IS a battery.
Cathode (red cat) piece of metal where reduction takes place. It is positive in the spontaneous voltaic cell and negative in electrolytic (when there IS a battery)
Created by: etucci



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