The Phlogiston Theory of ordinary burning posited that the materials that were combustible all contained a material called Phlogiston.
In science, theories are often put forward to explain a phenomenon. theory may not survive the test of time when contrary evidences begin to emerge.
The Phlogiston Theory of ordinary burning posited that the materials that were combustible all contained a material called Phlogiston which is released when the material is burnt.
However, Lavoisier was able to show by experiment that this position was a mere speculation and the the combustion of a substance was due to its reaction with oxygen.
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