Question

Which of the following is NOT true of physical changes? Question 3 options: Substances change form or shape Substances remain the same Chemical bonds are formed or broken

Answer 1

Chemical bonds are formed or broken. This is true of a chemical change, but not a physical change. A physical change is usually something that you can see, such as changing of shape or form or staying the same.  However, because you cannot visibly see chemical bonds being formed or broken and because this would affect the chemical composition, it is not a physical change.