back

Chapter 17
Oxidation and Reduction

17-04

Labeled

Title
Oxidation numbers
Caption
Oxidation occurs when there is an increase in oxidation number. Reduction occurs when there is a decrease in oxidation number.
Keywords
oxidation number, reduction, reactive, oxygen, chlorine, bromine
17-05

Labeled

Title
Oxidation and reduction
Caption
Three different definitions of oxidation and reduction. Besides looking at the change in oxidation number, these definitions may be used to deterine where oxidation - or reduction - processes occur.
Keywords
oxidation, reduction, electron, ydrogen, oxygen, gain, loss
17-07

Labeled

Title
Electrolysis
Caption
Electrolysis. When direct electric current is passed through an electrolyte, positive ions move to the cathode and negative ions move to the anode. Reduction occurs at the cathode, and oxidation takes place at the anode.
Keywords
electrolysis, electrolyte, direct current, cathode, anode, ions, reduction, oxidation
17-08

Labeled

Title
Electrolysis of molten sodium chloride
Caption
The diagram shows the electrolysis of molten sodium chloride.
Keywords
electrolysis, sodium, chloride, direct current, NaCl, molten salt
17-09

Labeled

Title
Electroplating of silver
Caption
The diagram shows an electrolytic cell for the plating of silver.
Keywords
electroplating, electrolysis, electrolyte, silver, nitrate, direct current
17-10

Labeled

Title
Electrochemical cell
Caption
A simple electrochemical cell. A battery may consist of two or more such cells. In this cell the two half-cells are separated by a porous partition. Variations of this Zn/Cu cell, called Daniell cells, were used to power telegraph relays more than 100 years ago.
Keywords
electrochemical, cell, battery, telegraph, electrolytic, voltaic, galvanic, electricity, current
17-11

Labeled

Title
Electrochemical cell with a salt bridge
Caption
In this electrochemical cell, solutions in the two half-cells are connected by a salt bridge. In the left compartment, zinc atoms give up electrons that flow through the wire to the copper metal in the right compartment. Copper(II) ions pick up the electrons and are reduced to copper atoms that are plated out as copper metal.
Keywords
electrochemical, cell, salt bridge, half-cell, zinc, electrolyte
17-12

Labeled

Title
Flashlight dry cell
Caption
The diagram shows a cross section of a flashlight "dry cell."
Keywords
dry cell, wet cell, Daniell, zinc-copper, battery, Zn/Cu
17-14

Labeled

Title
Car battery
Caption
Cutaway diagram of a lead-acid storage battery. Six 2-volt cells make up a 12-volt automobile battery.
Keywords
automobile, car, battery, electrolytic, voltaic, cell, lead, lead dioxide, oxidize, reduce

Labeled

Title
Electrolytes and Non-Electrolytes
Caption
Keywords

Labeled

Title
Oxidation-Reduction Reactions - Part I
Caption
Keywords

Labeled

Title
Oxidation-Reduction Reactions - Part II
Caption
Keywords

Labeled

Title
Standard Reduction Potentials
Caption
Keywords

Labeled

Title
Voltaic Cells I: The Copper-Zinc Cell
Caption
Keywords

Labeled

Title
Voltaic Cells II: The Zinc-Hydrogen Cell
Caption
Keywords

Labeled

Title
Electroplating
Caption
Keywords

Labeled

Title
Oxidation-Reduction Reactions of the Halogens
Caption
Keywords

Labeled

Title
Redox chemistry of tin and zinc
Caption
Keywords

Labeled

Title
Reduction of CuO
Caption
Keywords

Labeled

Title
Strong and weak electrolytes
Caption
Keywords

© 1995-2002 by Prentice-Hall, Inc.
A Pearson Company
Distance Learning at Prentice Hall
Legal Notice