Question

Would a substance with a density of 7.89 kg/dm^3 float on a substance that has a density of 14.2 g/ml?

Answer 1

get to g/cm^3 cm^3=ml
7.89 kg/dm^3 = 7890g/dm^3 = 7.89g/cm^3 = 7.89g/ml
so yes the substance will float because its less dense

Answer 2

I agree with Sarah. And note that a kg/dm^3 is a kg/L = g/mL