Question

Janet observes that bubbles rise inside water when water is heated. Which of the following best names and explains the change that causes bubbles to rise? Physical change, because heat only changes the attractions of the molecules Chemical change, because it is always accompanied by the absorption of heat Physical change, because it is always accompanied by the formation of gas bubbles Chemical change, because the atoms in water rearrange to form bonds with new atoms

Answer 1

The change that causes bubbles is a Physical change, because heat only changes the attractions of the molecules.

The heat gives more energy to the molecules causing them to move faster and break their bonds, going from a liquid to a gaseous atate.