Density is correctly described as a ______.

• A. type of energy
• B. physical property
• C. chemical property
• D. unit of mass

Answer: (B)

Verified step by step guidance

1. Understand the definition of density: Density is the measure of how much mass is contained in a given volume of a substance.
2. Recall the difference between physical and chemical properties: Physical properties can be observed or measured without changing the substance's identity, while chemical properties describe how a substance interacts or changes into a different substance.
3. Recognize that density can be measured without altering the substance's chemical composition, meaning it is a physical characteristic.
4. Eliminate options that do not fit: Density is not a type of energy, nor is it a unit of mass, and it does not describe chemical reactivity.
5. Conclude that density is best described as a physical property because it relates to the physical state and characteristics of a material without changing its chemical identity.