In Comparing the Density of Bronze Composed of 20% Tin

question 15

Multiple Choice

In comparing the density of bronze composed of 20% tin (r = 140 pm,7.37 g/cm³) to the density of pure copper (r = 128 pm,8.92 g/cm³) ,________

• A)the density of the bronze is lower.
• B)the density of the bronze is higher.
• C)the density of the bronze is the same.
• D)the density of the bronze depends on whether the tin or the copper occupies holes.
• E)It cannot be determined as only the 1:1 intermetallic compound of tin and copper has ever been observed.