To determine the mass of the sample, first find the volume difference after and before the aluminum was placed, the volume change is equal to the volume of the submerged object, in this case aluminum.
Then knowing volume of aluminum and the density of it, we can solve for the mass.
D = m/v
Dv = m
2.7 g/ml • 8 ml = 21.6 grams.
<h2>C</h2>
Explanation:
The atomic number of S is 
So,number of electrons in S is 
The electronic configuration of S is 
The orbital electronic configuration of S is 
So,the number of orbitals involved is 9.
Answer A: Connect a wire coil to an ammeter. Move a bar magnet into and out of the wire coil as you observe the ammeter.
Answer:

Explanation:
The equation for density is:

We plug in the given values:

