Which of the following is closest to the density of copper at room temperature?

• A. 1.00 g/cm^3
• B. 2.70 g/cm^3
• C. 8.96 g/cm^3
• D. 19.32 g/cm^3

Answer: (C)

Verified step by step guidance

1. Understand that density is defined as mass per unit volume, expressed as \(\rho = \frac{m}{V}\), where \(\rho\) is density, \(m\) is mass, and \(V\) is volume.
2. Recall or look up the typical density values of common materials at room temperature to compare with the given options. For example, water has a density of about 1.00 g/cm\(^{3}\), aluminum about 2.70 g/cm\(^{3}\), copper around 8.96 g/cm\(^{3}\), and gold approximately 19.32 g/cm\(^{3}\).
3. Recognize that copper is a metal with a density significantly higher than water and aluminum but less than gold, so the correct density should be close to 8.96 g/cm\(^{3}\).
4. Compare the given options to the known density of copper and identify which value is closest to it.
5. Select the value 8.96 g/cm\(^{3}\) as the density closest to copper at room temperature.