## Chemistry: The Molecular Science (5th Edition)

The metals can be the same only if their densities are the same. Cubes have volumes of $w^3$, and density is mass divided by volume. Your cube's density: (16.23g)/(1.32cm)$^3$ = 7.06g/cm$^3$ Partner's cube's density: 24.64g/(1.46cm)$^3$ = 7.92g/cm$^3$ These densities don't match, so the cubes must be different substances.