The Chemical Revolution (1770-1790) transformed scientific understanding through the work of chemists who rejected earlier theories of matter. Antoine Lavoisier (1743-1794) in Paris fundamentally changed chemistry by introducing precise measurement and the law of conservation of mass, establishing modern chemistry's foundation.

Key Figures and Discoveries

• Antoine Lavoisier - demonstrated in 1783 that water comprises hydrogen and oxygen through quantitative analysis
• Joseph Priestley (1733-1804) in England - isolated oxygen in 1774, though he called it "dephlogisticated air"
• Carl Wilhelm Scheele (1742-1786) in Sweden - independently discovered oxygen around 1772
• Henry Cavendish (1731-1810) in London - identified hydrogen as a distinct element in 1766

Revolutionary Contributions

Lavoisier's Traité Élémentaire de Chimie (1789), published in Paris, systematically listed 33 chemical elements and established modern chemical nomenclature. He proved that combustion required oxygen, not the hypothetical "phlogiston" substance. His experiments measured substances to the nearest 0.01 grams, introducing unprecedented precision.

The Swedish Academy of Sciences awarded Lavoisier the Copley Medal in 1788 for his oxygen research. By 1790, chemistry had transformed from qualitative observation into a quantitative science. Lavoisier's execution during the French Revolution in 1794 ended his contributions, yet his methods remained central to chemistry's continued development into the nineteenth century.

Reference:

Wikipedia reference

https://en.wikipedia.org/wiki/Chemical_Revolution