Question

Distinguish btw dwnsity and relative density

Answer 1

The ratio between density of a substance and density of water is called relative density.

The ratio between density of a substance and density of water is called relative density.

Relative density =

      Density of the substance/density of water at 40C

Units:  Relative density has no units because it is the ratio between the similar physical quantities (density).

Answer 2

density-mass per volume of a substance is called density.

Relative density-the ratio between the density of a substance and density of water is called relative density.