What is the significance of the law of conservation of mass?

The law of conservation of mass is significant because it helped scientists understand that matter is not created or destroyed during chemical reactions, but rather transformed into other substances with the same mass. This discovery was a key factor in the progression of chemistry and the development of modern science.
Here are some other details about the law of conservation of mass:
Explanation
The law states that the total mass of all reactants and products in a chemical reaction is the same at any point in time. This is because mass can be rearranged in space and the entities associated with it can change shape.
Discovery
The law was discovered by multiple scientists, including Russian scientist Mikhail Lomonosov and French chemist Antoine Lavoisier. Lavoisier is sometimes credited with discovering the law, and it is sometimes known as Lavoisier’s Law.
Chemical equations
A balanced chemical equation satisfies the law of conservation of mass. In a balanced chemical equation, the number of each type of atom is the same on both sides of the equation.
Physical changes
The law of conservation of mass does not apply to physical changes, such as ice melting to water. In a physical change, the physical properties of a substance change, but its chemical identity remains the same.