Density of Solids: Gold vs Copper

Which metal is the bracelet likely made of, gold or copper?

The bracelet has a mass of 45g and when submerged in water, the volume of the water rises from 9.2 cm³ to 11.7cm³.

Answer:

The bracelet is likely made of gold based on its density.

To determine whether the bracelet is made of gold or copper, we can calculate its density. The density of a substance can be found by dividing its mass by its volume. In this case, the mass of the bracelet is 45g and the volume of water displaced when the bracelet is submerged is 2.5cm³ (11.7cm³ - 9.2cm³).

The density of the bracelet is then calculated as 45g / 2.5cm³ = 18 g/cm³. Comparing this density to the given densities of gold (19.3 g/cm³) and copper (8.92 g/cm³), we can conclude that the bracelet is more likely made of gold due to its density being closer to the density of gold.