Oxidation numbers allow us to keep track of the number of electrons associated with each atom in a compound. These numbers are important in explaining chemical formulas and are essential when you study more complex chemical equations and electrochemistry. Assigning oxidation numbers is done by applying a set of rules. Oftentimes, careless application of these rules can make the task seem difficult and confusing for beginning students. This Tutor will teach you how to apply a simple and proven set of rules with a clear approach for assigning oxidation numbers. You will even discover when the oxidation number model does not apply. You can enter your own compounds and do your own work just as you do with paper and pencil. The Tutor comments on every step you take and guides you through to a solution.

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