The Law of Antoine Lavoisier

Antoine Lavoisier, born in Paris in 1743, was a pivotal figure in chemistry. Initially studying law, he shifted to science, challenging the Phlogiston theory, which claimed fire was an element. Lavoisier demonstrated that oxygen is crucial in combustion and established the law of conservation of mass, stating matter is neither created nor destroyed. His work revolutionized chemistry, making it an exact science, and earned him the title 'Father of Modern Chemistry'. Despite initial skepticism, his discoveries laid the foundation for modern chemical understanding.

What was Antoine Lavoisier's initial field of study before he pursued science?

• Medicine

• Law

• Engineering

• Philosophy

What was the Flojistan theory about?

• The role of oxygen in combustion

• The existence of a fire element called Flojistan

• The conservation of mass in reactions

• The transformation of matter

How did Lavoisier disprove the Flojistan theory?

• By showing that fire is a chemical reaction

• By demonstrating the role of oxygen in combustion

• By proving that mass is lost in reactions

• By discovering a new element

What does the law of conservation of mass state?

• Mass is lost during chemical reactions

• Matter can neither be created nor destroyed

• Matter is transformed into energy

• Mass can be created and destroyed

Why is Lavoisier considered the Father of Modern Chemistry?

• He discovered the element oxygen

• He invented modern laboratory equipment

• He introduced the concept of chemical reactions

• He established the law of conservation of mass