Question

define density and relative density​

Answer 1

density is mass per unit volume.

it has unit that is kg /m3

relative density

density of substance/ density of water

it has no unit because it is ratio of densities

Answer 2

$\huge\boxed {Answer}}}$

Density:- density of a substance is defined as the mass per unit volume of the substance. its SI unit is kg/m³.

--------------------------------------

relative density:- relative density of a substance is the ratio of its density to that of water. relative density is the ratio of densities, it is unitless.

HOPES THIS HELPS YOU...............☺☺