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Redox Reactions and Electrochemistry
Redox Reactions and Electrochemistry

... different concentrations. The driving force (i.e. the EMF) is provided by the difference in concentrations. ...
Redox Reactions: Transferring Electrons
Redox Reactions: Transferring Electrons

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CHM 111: General Physical Chemistry 3 Units

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oxidation numbers worksheet

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AP Ch. 20 Notes (2005)

... • If we examine the oxidation state of zinc, we see that zinc started out at zero and ended up at +2…it lost 2 electrons. − The process in which a substance increases its oxidation state (by losing electrons) is called “oxidation.” • If we examine the oxidation state of hydrogen, we see that hydroge ...
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Redox Reactions and Electrochemistry
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... Chapter 3 - The Availability of Other Resources from Renewable Resources Ethanol As A Source of Ethylene Ethanol has the structural formula CH3-CH2-OH, meaning it is an alkane with one H atom replaced by the OH functional group. It is the most widely used alcohol, which is a family of carbon compou ...
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1.5.16(Chem) - mrcarlsonschemistryclass
1.5.16(Chem) - mrcarlsonschemistryclass

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PPT - kimscience.com

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Oxidation and Reduction Reactions

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Electrochemistry



Electrochemistry is the branch of physical chemistry that studies chemical reactions which take place at the interface of an electrode, usually a solid metal or a semiconductor, and an ionic conductor, the electrolyte. These reactions involve electric charges moving between the electrodes and the electrolyte (or ionic species in a solution). Thus electrochemistry deals with the interaction between electrical energy and chemical change.When a chemical reaction is caused by an externally supplied current, as in electrolysis, or if an electric current is produced by a spontaneous chemical reaction as in a battery, it is called an electrochemical reaction. Chemical reactions where electrons are transferred directly between molecules and/or atoms are called oxidation-reduction or (redox) reactions. In general, electrochemistry describes the overall reactions when individual redox reactions are separate but connected by an external electric circuit and an intervening electrolyte.
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