Chemistry Chapter 21-Electrochemistry

Front 1

electromachining

Back 1

a piece of metal at the anode is partially dissolved until the remaining portion is an exact copy of the object at the cathode

Front 2

electropolishing

Back 2

the surface of an object at the anode is dissolved selectively to give it high polish

Front 3

electrorefining

Back 3

a piece of impure metal is made the anode of the cell, oxidized to the cation, and then reduced to the pure metal at the cathode

Front 4

electrowinning

Back 4

impure metals can be purified in electrolytic cells; cations are reduced at the cathode

Front 5

electroforming

Back 5

process in which an object is reproduced by making a metal mold of it at the cathode of the cell

Front 6

electroplating

Back 6

deposition of a thin layer of a metal on an object in an electrolytic cell; the object is made the cathode of the cell and the anode is made silver