Answer:
No atoms are created or destroyed in a chemical reaction. The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions.
Step-by-step explanation:
In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.
This means that the total mass of the products in a chemical reaction will be the same as thetotal mass of the reactants .