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'''Phlogiston''' was a invisible, intangible substance believed to exist in the 1700s, which purported to explain the phenomenon of [[Fire]].  It was widely discarded after the discovery of [[Oxygen]], which fit the observable facts better.
 
'''Phlogiston''' was a invisible, intangible substance believed to exist in the 1700s, which purported to explain the phenomenon of [[Fire]].  It was widely discarded after the discovery of [[Oxygen]], which fit the observable facts better.
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[[Category:Science]]
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[[Category:Chemistry]]
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