A certain material has a density of 19.3 g/mL. Which of the following is most likely the material?

• A. Silver
• B. Iron
• C. Copper
• D. Gold

Answer: (D)

Verified step by step guidance

1. Understand that density is defined as mass per unit volume, given by the formula \(\text{Density} = \frac{\text{Mass}}{\text{Volume}}\).
2. Note the given density of the material is 19.3 g/mL, which is a relatively high density compared to many common metals.
3. Recall or look up the typical densities of the given metals: Silver (~10.5 g/mL), Iron (~7.9 g/mL), Copper (~8.96 g/mL), and Gold (~19.3 g/mL).
4. Compare the given density (19.3 g/mL) to the known densities of the metals listed to identify which one matches most closely.
5. Conclude that since the density of the material matches the density of gold, the material is most likely gold.