Which of the following most likely happens during a physical change? a. an irreversible process takes place. b. substance changes its form but not its molecular composition. c. new atoms are introduced in the molecules of the substance. d. a substance reacts differently with a chemical before and after the change.

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.