The table shows the mass and density of some substances. Part 1: Is the value of Q less than, greater than, or equal to the value of P? Part 2: Explain your answer for Part 1.

Density of Substances

Mass

(g) Density of Iron

(g/cm3) Density of Silver

(g/cm3)

100 7.8 Q

200 P 19.3

(1) and (2) Density is an intrinsic property of the substance and is calculated by dividing the given mass by the volume. That is shown in the equation,

D = mass / volume

This means that at a certain temperature and environmental condition, the value is unique to the substance. The value of Q, which is the density of silver when mass is 100 g is supposed to be greater than the value of P, which is the density of iron when mass is 200 g.