Question

What is law of mass conservation? who proposed law of conservation of mass.​

Answer 1

Answer:

Antoine Lavoisier's

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

Explanation:

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Answer 2

Answer:

The law states that the mass of any element in beginning of a reaction will be equal to the mass of the same element in the end of a reaction.

It was demonstrated in chemical reaction by MikhailLomonosov and later rediscovered by Antoine Lavoisier.