Respuesta :
A physical change is a change from one state of matter to another; a chemical change results in a new substance formed,
A physical change can be described as the changes which affect the form of a substance while the chemical composition of the substance remains the same. When a substance undergoes a physical change, the state of matter is changed. A chemical change, on the other hand, can be described as the change which affects the chemical composition of a substance and results in the formation of a new substance.
Hence, the answer is 'A physical change is a change from one state of matter to another; a chemical change results in a new substance formed'.