Answer:
C. 2.1 g/cm^3
Step-by-step explanation:
The density of an object is its mass per unit volume.
The formula for density is:
[tex]D=\frac{M}{V}[/tex]
The object has a mass of 4.2 grams.
[tex]\implies M=4.2g[/tex]
and a volume of 2 cubic centimeters
[tex]\implies V=2cm^3[/tex]
We substitute the known values into the formula to get:
[tex]D=\frac{4.2}{2}gcm^{-3}[/tex]
We simplify to obtain:
[tex]D=2.1gcm^{-3}[/tex]
