Chapter 5 Flashcards
(15 cards)
Reduction
Substance has gained e-
Oxidation
Substance has lost e-
Leo says ger
Lose e ox gain e red
Reducing Agents
Substance that is oxidized thus allowing another substance to be reduced
Oxidation Agent
Substance that is reduced thus allowing another substance to be oxidized
Redox reactions
Must be spontaneous
E cell = E ox + E red —> pos
Electrochemical cells
Are spontaneous redox reactions that produce a voltage
Electrodes
Where oxidation and reduction occur
Anode
Site of oxidation (-)
Cathode
Site of reduction (+)
ANOCPR
Anode neg ions go here ox cathode pos ions go here red
E go FATCat
From anode to cathode
Corrosion
The oxidation of metal
Electrolytic Redox Rx’ns
Non spontaneous redox reactions
Electrolysis
Use of an electrical current to bring about a chemical reaction