A sample of an unknown metal has a mass of 428 grams and a volume of 20 cm3. What is the metal?

Question

A. Chromium
B. Platinum
C. Lead
D. Silver

Answer 1

All the answers for: Mass, Weight, and Density Quick Check on Connexus.

1 D. Bailee is incorrect. The mass of the objects stay the same but weight will change.

2 A. Yes, they would still be balanced because their masses would not change.

3 B. m=D×V

4 B. Platinum

5 C. Quartzite

Answer 2

density of the metal is mass/volume = 428/20 = 21.4 g/cc so the metal is Pt or answer b.