Answer:
10g/cm^3
Explanation:
Density is calculated by dividing the mass over volume.
d = m/v ( where d is density,
m is mass and
v is volume).
In this question, the value for volume is unknown as we were only given length.
STEP 1:
so we find volume first by using the length of side given.
Volume of a cube = (length of side )^3
volume = (2cm)^3 , volume = 2cm x 2cm x 2cm = 8cm^3
STEP 2:
we put the value for volume into the density formula'
d = mass / volume
d = 80g / 8cm^3
d = 10g/cm^3