Question

good morning everyone what are physical and chemical changes​

Answer 1

Answer:

Physical changes are the changes that when occur, don't cause any chemical reaction. Even though the shape and size of the object may change, but its chemical content won't change. For example: Breaking of a glass tumbler.

Chemical changes are those changes that when occur, cause a chemical reaction. Maybe the shape and size of the object remains same but its chemical content changes. For example: reaction of magnesium with chlorine to form magnesium chloride in combustion