By density
A property of matter that can be identified without changing the identity of the substance is its density. Density is a characteristic property that remains constant regardless of the amount of substance present.
The property of matter that can be identified without changing the identity of the substance is called a physical property. Examples of physical properties include color, smell, freezing point, boiling point, and density. These characteristics can be observed or measured without altering the chemical structure of the substance. In contrast, chemical properties involve changes to the substance's identity during a chemical reaction.
The identity of a substance (chemical compound) is defined by his chemical formula and molecular structure.
No, a physical property DOES NOT change the identity of a substance. That would be a chemical property which DOES change the identity.
Identified means to establish the identity of someone or something;recognise as being.
hazard substance
This substance is very probable an acid.
The identity of the substance reamain unchanged.
The witness identified the suspect in an identity parade.We have identified the culprit.
Many physical changes will not alter the identity. However, some physical changes, such as heating or cooling will result in phase changes and so the identity will be different. While ice and water are chemically the same, they are not identical forms of the substance.
By a simple observation; also a semisolid substance can flow without any stress.
A physical change is when a substance changes, but still keeps its identity. When a chemical change occurs, the substance changes its identity.