Why is Antoine Lavoisier called a founder of modern chemistry?

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Antoine Lavoisier is recognized as a founder of modern chemistry primarily for his role in leading the 18th-century chemical revolution and his commitment to transforming the field into a rigorous, quantitative science.21

His foundational contributions include:

  • Theory of Combustion: He replaced the outdated phlogiston theory with an experimentally sound theory of oxygenation, identifying oxygen as a key substance in combustion.231
  • Conservation of Mass: He championed the principle that matter is neither created nor destroyed in chemical reactions. His insistence on measuring all substances involved helped establish the conservation of mass as a fundamental law.4
  • Standardized Nomenclature: He coauthored a new system for naming chemical substances, the fundamentals of which remain in use today.251
  • Methodological Rigor: Through his Elementary Treatise on Chemistry, he defined the precise methods for investigating and organizing chemical subjects, emphasizing careful experimentation and quantification over mere hypothesis.21