A block of metal has a mass of 173 g and a volume of 19.4 cm³. What is the identity of the metal?

• A. Copper, density = 8.92 g/mL
• B. Iron, density = 7.86 g/mL
• C. Gold, density = 19.3 g/mL
• D. Aluminum, density = 2.70 g/mL

Answer: (A)