Question

Law of conservation of mass was put forward by
A.Lavoisier
B.Dalton
C.Priestly
D.Thomson

Answer 1

Hint: In physics, mass is a numerical measure of inertia, which is a basic property of all matter. It is, in essence, a body of matter's resistance to a change of speed or location caused by the application of a force. The smaller the shift caused by an applied force, the greater the mass of the body.

Complete answer:
The Law of Conservation of Mass was established in 1789 when Antoine Lavoisier discovered that mass is neither produced nor lost in chemical reactions. In other words, the mass of any one element at the start of a reaction would be the same as the mass of that element at the end. In any closed structure, the overall mass would be the same at any point in time as all reactants and products are accounted for. Lavoisier's discovery revolutionised science and set the groundwork for modern chemistry. Since naturally occurring elements are extremely stable under the conditions present on the Earth's surface, the Law of Conservation of Mass holds true.
The majority of elements are produced by fusion reactions that can only be present in stars or supernovae. As a result, atoms are not transformed to other elements during chemical reactions in the daily universe of Earth, from the summit of the tallest mountain to the bottom of the darkest seas. Specific atoms that make up living and nonliving matter are very ancient as a result of this, and each atom has a background.
An atom of a biologically significant substance, such as carbon, may have spent 65 million years buried as coal before being burnt in a power plant, then two decades in the Earth's atmosphere before being dissolved in the ocean, and eaten up by an algal cell that was swallowed by a copepod before being respired and returning to the atmosphere. The atom does not produce or kill itself; instead, it cycles through chemical compounds.

Note:
By performing a mass equilibrium, ecologists may apply the rule of conservation of mass to the study of elemental cycles. These studies are just as critical for the advancement of ecology as Lavoisier's discoveries were for chemistry.