Which statement best describes why a chemical change is different from a physical change? a chemical change results in a different state of matter, and a physical change results in a new substance being formed. a chemical change is used by scientists to create new substances, and a physical change happens naturally. a chemical change results in a new substance being formed; whereas, a physical change will result in a different state of matter. a chemical change is used to identify characteristics of a substance, and a physical change identifies the behavior of a substance when in a reaction.