Answer:
<h3>The answer is 19.3 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 57.9 g
volume = 3 cm³
We have

We have the final answer as
<h3>19.3 g/cm³</h3>
Hope this helps you
N = 3
O = -2
1(3) +2(-2)= -1
Atomic mass is the sum of the masses of the protons, neutrons, and electrons in an atom