law of conservation of matter

• Principe fondamental de la physique et de la chimie selon lequel la matière ne peut être ni créée ni détruite dans un système fermé, mais seulement transformée d'une forme à une autre.

A fundamental scientific principle stating that matter cannot be created or destroyed in a closed system, only transformed from one form to another.

1. Scientific principleB2formal

   A fundamental principle of physics and chemistry stating that matter cannot be created or destroyed in an isolated system; the total mass of substances remains constant during a chemical reaction or physical change.

   loi de conservation de la matière

   • According to the law of conservation of matter, the mass of the reactants equals the mass of the products.
   • In a closed system, the law of conservation of matter ensures that no atoms are lost.
   • The law of conservation of matter is a cornerstone of modern chemistry.