Answer:
mass
Explanation:
The density of a substance is defined as the ratio of mass of the substance to the volume of the substance.
It is a scalar quantity.
[tex]Density = \frac{mass}{volume}[/tex]
Its SI unit is kg/m^3.
By comparing the densities we get the idea about how dense the substance is.
For example, cotton and iron, the density of cotton is much less than iron so the cotton is less dense than iron.
The relative density is defined as the ratio of density of substance to the density of water at 4 degree C.
The density of water is maximum at 4 degree C.
