Answer :
An unknown substance has a density of 2.5g/ml. Density is a physical property because we can find it for a substance without changing the identity of the substance. The correct option is B.
What are physical properties?
Physical properties are those properties that can be seen by seeing the matter of the object. Density is a physical property. It does not depend upon the chemical composition of the object.
Thus, the correct option is B. Density is a physical property because we can find it for a substance without changing the identity of the substance.
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