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Identifying Common Electrolytes and Comparing their Strengths (page 3)

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Author: Janice VanCleave

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  1. Luigi Galvani, a medical professor, and Alessandro Volta, a physicist, were the first to experiment with producing electrical energy from chemicals. Find out more about the experiments performed by Galvani that caused him to believe that within animals existed "animal electricity." What experiments made Volta violently oppose Galvani's animal electricity theory?
  2. The deposition (depositing) of a thin layer of a metal on an object in an electrolytic cell is called electroplating. Find out more about this process. What is electroforming? Electrowinning? Electrorefining? Electropolishing? Electromachining?
  3. Electrolytes: Conductors of Electricity

  4. Until the end of the nineteenth century, only the very wealthy could afford aluminum items. They were expensive because there was no known practical way of separating the pure metal from aluminum compounds. The inexpensive aluminum used today is produced by an adaptation of an electrical process invented almost simultaneously by Paul Heroult, a French metallurgist, and Charles Hall, an American chemist. Find out more about this process that provides us with an abundant supply of low-cost aluminum. What materials are needed? Why is it such an inexpensive process?
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