Matter is _______ during a chemical reaction.
Law of Conservation of Mass:
(1)This law was put forward by Antoine Lavoisier in 1774.
(2)The law can be stated as follows “The total mass of the reactants in any physical or chemical change remains equal to the mass of the products after the change.”.
(3)In other words,mass can neither be created nor destroyed in any physical or chemical reaction.
Therefore,matter is conserved during a chemical reaction.