The three solids below each weigh 50.0 g. Their possible identities could be zinc (d = 7.14 g/mL), platinum (d = 21.45 g/mL), or palladium (d = 12.03 g/mL). Determine the identity of each solid.

• A. (i) palladium
  (ii) platinum
  (iii) zinc
• B. (i) palladium
  (ii) zinc
  (iii) platinum
• C. (i) platinum
  (ii) zinc
  (iii) palladium
• D. (i) zinc
  (ii) platinum
  (iii) palladium
• E. (i) zinc
  (ii) palladium
  (iii) platinum

Answer: (A)