The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the ...

The total mass stays the same during a chemical reaction. This is the law of conservation of mass. In both examples, the reactants and products stay in the beaker. The total mass of the beaker and ...

This is because melting the ice has not created or destroyed any atoms and the mass has stayed the same. This is known as the law of conservation of mass. It applies to both chemical reactions and ...