ELECTROCHEMISTRY

What is Electrochemistry?  When chemical changes or reactions occur that are caused by electrical energy applied

What does REDOX mean?  REDOX is the abbreviation for Reduction- Oxidation Reactions

Definitions  What is Reduction?  When an atom or ion GAINS one or more electrons Na + + 1e -  Na  What is Oxidation?  When an atom or ion LOSES one or more electrons Cu  Cu e -

O I L R I G XIDATIONXIDATION SO S of e - EDUCTIONEDUCTION SA I N of e -

Identify the type of half-reaction Ag  Ag + + 1e - __________________ Fe e -  Fe__________________ Al e -  Al__________________ Pd  Pd + + 1e - __________________ Hg e -  Hg__________________

Applications of Electrochemistry  Electroplating  Layering a metal of atoms over the surface of another metal Car bumpers Pennies  Metal processing  Extracting Al 3+ ions from the soil and turning it into pure Al metal  Batteries  Converts chemical energy to electrical energy using electrochemical cells