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Redox reactions are VERY important, and have formed the basis of much of what we have discovered, if not directly than indirectly. You will most likely agree with me in saying that the invention of a battery, be it an immobile cell or a portable power source, is an important event in history, correct? Well, the first batteries produced, such as the Voltaic Pile and the Daniell Cell, are actually examples of a redox reaction, where electrons move from chemical to another, changing the chemical species of each as it occurs. For example, in the Daniell cell, copper in a copper nitrate solution and zinc in a zinc nitrate solution have different reduction or oxidation potentials, and thus can induce an electron flow in both an internal circuit (such as a salt bridge- paper soaked in an ionic solution, an electrolytic solution) and an external circuit (such as your device that is powered by the battery).

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13y ago

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