THIS DAY IN SCIENCE: First Barbed Wire Patent in 1874

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Citrus Battery Contest

Citrus Battery Contest

by | Jul 19, 2017 | Gr 9-10 Science, Gr. 11-12 Chemistry

Introduction When two metals having different electrical potentials are placed in a solution of an electrolyte (such as a lemon or an orange, with its high concentration of citric acid), a crude electrochemical cell is set up. The cell is a voltaic cell resulting from...
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