Question

mass7.8kg.volume 1000cm3. how many densety?

Answer 1

density = mass /volume
given that the mass = 7.8 kg volume = 1000cm³
density = 7.8kg/1000cm³=0.0078kg/cm³

Answer 2

Hey there!!!
We have ,

Mass = 7.8 kg

= 7.8×1000 g
= 7800.0 g

We know
$density = \frac{mass}{volume} \\ = \frac{7800}{1000} \\ = > 7.8gm {cm}^{3}$
Hope this helps u !!!!