Write down the law of conservation of mass. List the name of the scientist who formulated this law.

The law of conservation of mass of substances was formulated by the Russian scientist M.V. Lomonosov in 1748.

The mass of the substances that reacted is equal to the mass of the substances that are formed as a result of the reaction.

Then this law, independently of Lomonosov, was checked by the French scientist Lavoisier.

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