True: Mass is never created, Mass is never destroyed, Mass can be rearranged, Rearrangement of atoms leads to new compounds with new properties, The total mass in a chemical reaction never changes, Same number of atoms in the reactant must be in the product, A change in subscript results in a completely different compound, False: Mass is created, Mass is destroyed, Individual elements keep their properties when combined into compounds , Total mass of reactant can be less than a product if elements are lost, A chemical reaction can create a new element that is not in the reactant, A change in subscript results in less of the same compound,

Law of Conservation of Mass

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