Question

all substances have characteristic properties. if one of these properties can be observed without changing the identity of the substance, it must be a

a. physical property.
b. chemical property.
c. universal property.
d. biological property.

Explanation:

Physical properties can be observed or measured without changing the substance's identity. Chemical properties involve a change in the substance's identity. Universal and biological properties do not match the given description.

Answer:

A. physical property