Oxidation reduction : Khan Academy on a Stick

Khan Academy on a Stick

Chemistry

Introduction to the atom
Orbitals and electrons
Periodic table, trends, and bonding
Chemical reactions (stoichiometry)
Ideal gas laws
States of matter
Reaction rates
Acids and bases
Oxidation reduction
Radioactive decay

Oxidation and reduction
Oxidation state trends in periodic table
Practice determining oxidation states
Unusual oxygen oxidation states
Oxidation reduction or redox reactions
Redox reaction with iron

Redox reactions

Oxidation and reduction are powerful ideas for thinking about how charge is transferred within a reaction. As we'll see, it is something of a hypothetical, but it is, nonetheless, very useful.

Redox reaction from dissolving zinc in copper sulfate
Galvanic cell voltaic cell
Electrodes and voltage of Galvanic cell

Battery basics

Batteries power much of our lives (literally). In this tutorial, we'll use our knowledge of oxidation and reduction to understand how Galvanic/Voltaic cells actually work.