12. A sample of metal weighed 55 grams. Because it was irregularly shaped, it was placed into 20 mL of water. The water then rose to 25 mL, Calculate the density of the unknown metal. If we were able to narrow down the metal by appearance to being either Aluminum (density = 2.70 g/mL) or Lead (density = 11.2 g/mL) which would we prove it to be? navailable earch P