Question

Which describes a major contribution by Antoine Lavoisier to the science of chemistry? He helped to change the emphasis of research from observation to measurement. He discovered and correctly identified the presence of oxygen and nitrogen in air. He established commissions to provide for government funding of research.

Answer 1

The founder of modern chemistry is considered Antoine Laurent Lavoisier. One of his most important contributions to the field is his discovery of the oxygen function during combustion. He could refute Phlogiston 's theory that a fire-like substance was released during combustion. The metric system was also developed and chemical nomenclature improved.

Answer 2

He helped to change the emphasis of research from observation to measurement.

Step-by-step explanation:

He developed the metric system. He is known for stoichiometry. He identified the presence of oxygen and hydrogen. He proved that oxygen is involved in combustion. He confirmed that matter may change shape and size but matter remains constant. He predicted the existence of Si and proved that S is an element and not a compound as was otherwise believed.