The law of conservation of matter, also known as the law of conservation of mass, states that matter cannot be created or destroyed in a chemical reaction. In other words, the total mass of all reactants before a chemical reaction is equal to the total mass of all products after the reaction. While matter may change its form or state during a chemical reaction, the total amount of matter remains constant. This principle is a fundamental concept in chemistry and is based on the understanding that atoms are neither created nor destroyed.
