Question

Opacity is a:

• A. physical property
• B. chemical property
• C. both A and B
• D. can't be said

Answer 1

Answer: (A)

physical property

Physical properties can be observed or measured without changing the composition of matter. Chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity. Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. It is a physical property.