Lesson 3

What did Antoine Lavoisier help to define?

• The electron configuration

• The periodic table

• The metric system

• The atomic number

Tags

NGSS.MS-PS1-5

What was the prevailing theory of chemical change before Lavoisier's work?

• Phlogiston theory

• Combustion theory

• Quantum theory

• Atomic theory

What did Lavoisier determine about the mass of burned substances?

• It disappears

• It remains the same if all particles are collected

• It decreases

• It increases

Tags

NGSS.MS-PS1-5

Who showed that a chemical compound always contains the same proportions of elements?

• John Dalton

• Amadeo Avogadro

• Joseph Proust

• Antoine Lavoisier

What did Avogadro propose about gases in containers of the same size, temperature, and pressure?

• They have the same number of molecules

• They have different volumes

• They have different numbers of molecules

• They have the same mass