What is the density of mercury at room temperature, expressed in g/cm^3?

• A. 1.0 g/cm^3
• B. 19.3 g/cm^3
• C. 7.9 g/cm^3
• D. 13.6 g/cm^3

Answer: (D)

Verified step by step guidance

1. Understand that density is defined as mass per unit volume, expressed as \(\text{density} = \frac{\text{mass}}{\text{volume}}\) with units such as g/cm\(^3\).
2. Recall or look up the standard density value of mercury at room temperature, which is a well-known physical property.
3. Note that mercury is a heavy metal liquid at room temperature, and its density is significantly higher than water (which is 1.0 g/cm\(^3\)).
4. Compare the given options to the known density of mercury, which is approximately 13.6 g/cm\(^3\).
5. Select the value closest to the known density of mercury, confirming that 13.6 g/cm\(^3\) is the correct choice.