How are a mold and cast related?

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

What are the similarities of physical and chemical change ?

Heat is the total potential energy of a substance that can be transferred. true false