Is the law of conservation of mass/matter false? If so why won't they change it?

Felicitas Phildor: Yes. Because it is defined that way in a closed system.

Elden Bardach: Your fact is fake. rely can certainly be destroyed. each famous guy or woman interior the universe destroys rely. while you're taking 2 atoms of hydrogen and fuse them right into a single atom of helium, the helium atom weighs below the two hydrogen atoms did while they have been separate. the only way this would be is that if some mass become destroyed interior the fusion technique. This additionally happens with nuclear fission. potential can't be created or destroyed. rely is barely one -style- of potential, and while rely is destroyed, it fairly is only switched over into yet another style of potential....Show more

Robin Marchione: The law of conservation of mass, also known as the principle of mass conservation, states that the mass of an isolated system will remain constant over time.The law of conservation of energy, also known as the principle of energy conserva! tion, states that the total amount of energy in an isolated system remains constant over time.These two statements can be combined into one statement that the total amount of mass and energy in an isolated system remains constant over time.Mass and energy in an isolated system remains constant. I don’t know what prevented us in saying like this. I strongly believe that it was not a necessary statement as there was no occasion to state this statement.Bus now since we know that conversion of energy into mass and vice versa, we have to state that Mass and energy in an isolated system remains constant.And this is not a new principle, but the very old two statements are combined into a single one because of necessity and this combined statement could have been stated even earlier before the new principle of conversion of energy into mass and vice versa came to be known.I would say that Einstein discovered the combined law rather than invented this law.====================! ========================The principle of Physics is that any t! hing cannot be created from nothing.If there is a creation, some thing must be destroyed .=============...Show more

Billie Bratchett: The law of conservation of mass is not untrue, just incomplete. The discovery of the equivalence between mass and energy led to the fusion of the two conservation laws into the Law of Conservation of Mass/Energy.Even when mass is converted into energy, it still exists, just in another form. That same energy can be used to reform matter identical in mass to the original matter. Particles and anti-particles "destroy" each other, but are also created from energy in other situations....Show more