I want to say addition. But I have a tendency to be wrong
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 =
Now insert the given parameters and solve;
Density =
= 7g/cm³
The mineral with a density of 7g/cm³ is Galena, an ore of lead.
Answer:
A unit for measuring work is called the foot-pound