Who came up with the law of conservation of mass

The law of conservation of mass/matter, also known as law of mass/matter conservation (or the Lomonosov-Lavoisier law), states that the mass of a closed system of substances will remain constant, regardless of the processes acting inside the system. An equivalent statement is that matter cannot be created nor destroyed, although it may change form. This implies that for any chemical process in a closed system, the mass of the reactants must equal the mass of the products. The law of mass/matter conservation may be considered as an approximate physical law that holds only in the classical sense before the advent of special relativity and quantum mechanics. The name Lomonosov may refer to: Mikhail Lomonosov, a polymath and writer of Imperial Russia Lomonosov Gold Medal, an annual award given by the Russian Academy of Sciences Lomonosov, Russia, a city named for Mikhail Lomonosov (formerly Oranienbaum) This is a disambiguation page — a navigational aid which lists other... Antoine-Laurent de Lavoisier (August 26, 1743 - May 8, 1794) was a French nobleman prominent in the histories of chemistry, finance, biology, and economics. ... This article or section is in need of attention from an expert on the subject. ... In thermodynamics, a closed system, as contrasted with an isolated system, can exchange heat and work, but not matter, with its surroundings. ... This article is about matter in physics and chemistry. ... For a less technical and generally accessible introduction to the topic, see Introduction to special relativity. ... Fig. ...