Question

any characteristic of a material, such as size or shape, that can be observed without changing the identity of a material chemical property chemical change physical property homogeneous mixture

Explanation:

To solve this, we analyze each option:

• Chemical Property: Relates to how a substance reacts chemically, changing its identity, so not correct.
• Chemical Change: Involves a change in the substance's identity (new substance formed), not an observation without change.
• Physical Property: Defined as a characteristic observed without changing the material's identity (like size, shape, color, etc.). This matches the description.
• Homogeneous Mixture: A type of mixture with uniform composition, not a characteristic of a material's properties.

Answer:

C. Physical Property