Who is antoine laurent lavoisier?

Question

and his contribution in field of chemistry and his picture

Answer 1

ANTOINE LAURENT LAVOISIER GAVE THE LAW OF CONSERVATON OF MASS WHICH STATES THAT MATTER CAN NEITHER BE CREATED NOR DESTROYED.

Answer 2

Antoine Laurent Lavoisier was one of the first modern chemist still he makes qualitative measurements. he proved that air is a mixture of gases

A shame for France : He was also fermier general which means high collector of taxes. It was an important person under monarchy. For this during the "big terror" in France , he was sentenced to death and Robespierre  or Fouquier Tinville"said "french republic needs no savants ". I am french and this scares me

Answer 3

He was a famous French chemist who was behaded during the French Revolution. he was instrumental in disproving the phlogiston theory of combustion ( things burned because they cotained an inflammable principle called phlogiston ) . He showed that oxygen was the combustion principle and that life was a chemical process. He laid the foundation for modern biochemistry by relating respiration to oxygen consumption.