This is a property of matter that can be identified without changing the identity of the substance.

Physical property i

Explanation:

Physical property is defined as the property of a substance which becomes evident during physical change in which there is alteration in shape, size etc. No new substance gets formed during physical change. Example: Melting point

Chemical property is defined as the property of a substance which becomes evident during chemical change in which a change in chemical composition takes place. A new substance is formed in these reactions. Example: Reactivity with other substances

Thus property of matter that can be identified without changing the identity of the substance is physical property.

answer carbon and three oxygen atoms;