Final answer:
The density of the jewelry is 10.57 g/mL. It is likely made of lead or silver based on its density.
Step-by-step explanation:
To calculate the density of the jewelry, we need to use the formula Density = Mass/Volume. First, we subtract the initial volume of water from the final volume to find the volume of the jewelry. The volume of the jewelry is 61.2 mL - 48.6 mL = 12.6 mL. Then, we divide the mass of the jewelry (132.6 g) by its volume (12.6 mL) to find its density. The density of the jewelry is 132.6 g/12.6 mL = 10.57 g/mL.
Assuming that the jewelry is made from only one substance, we can compare its density to known densities of different substances. Based on the density of 10.57 g/mL, the jewelry is likely to be made of a material such as lead (density of 11.34 g/mL) or silver (density of 10.49 g/mL). However, without further information or testing, we cannot definitively determine the exact substance.