Which procedure could be used to demonstrate that matter is conserved during chemical change or reaction?

Answer 1

One common procedure that could be used to demonstrate the conservation of matter during a chemical change or reaction is called "mass balance". This involves weighing the various reactants before the reaction takes place, and then weighing the products after the reaction is complete. By comparing the mass of the reactants to the mass of the products, any difference would demonstrate that matter is not conserved. However, if the masses are found to be equal, it would support the principle of conservation of matter.