Define the Law of Conservation of Mass.

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(N/A) The Law of Conservation of Mass states that matter can neither be created nor destroyed in a chemical reaction.
This law was put forth by Antoine Lavoisier in $1789$.
He performed careful experimental studies for combustion reactions to reach this conclusion.
This law formed the basis for several later developments in chemistry.
It is the result of exact measurements of the masses of reactants and products in carefully planned experiments.

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