Answer:
7g/cm³
Explanation:
Given parameters:
Mass of the mineral = 21g
Volume = 3cm³
Unknown:
Density of the mineral = ?
Solution:
Density of a substance is the mass per unit volume of the substance.
Density = [tex]\frac{mass}{volume}[/tex]
Now insert the given parameters and solve;
Density = [tex]\frac{21}{3}[/tex] = 7g/cm³
The mineral with a density of 7g/cm³ is Galena, an ore of lead.
