Redox Reactions

031 - Redox Reactions

In this video Paul Andersen explains how redox reactions are driven by the movement of electrons from the substance that is oxidized to the substance that is reduced. Oxidation is the loss of electrons and reduction is the gaining of electrons. Since electrons are not normally displayed in a chemical equation oxidation numbers are important in determining what atom is oxidize and what atom is reduced. Redox reactions are important in energy production and can also be used in basic titrations.

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Music Attribution
Title: String Theory
Artist: Herman Jolly

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[mathyouprayter]

Oxidation numbers:
Mn=0
Pb=+2
(NO3)2=-1

Mn=+2
(NO3)2=-1
Pb=0

Manganese is being oxidized
Lead is being reduced

The reaction is a Single Replacement

Half Reactions:
Mn ---> Mn(NO3)2+2e-
Pb(NO3)2+2e- ---> Pb

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[alexmarrero]

This video should really have shown how to find the redox reaction for that Mn + Pb example

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