Respuesta :

Answer:

330.75 cm^3

Explanation:

d=m/v

10.5g/1 cm^3=31.5g/x cm^3

solve for x

round to the sig figs you have to.

Answer:

  3 cm^3

Explanation:

The units tell you that the volume will be the ratio of mass to density.

  (31.5 g)/(10.5 g/cm^3) = 3 cm^3