<span>Gather your materials. Gather the sand, salt and iron filing mixture; a magnet; a paper towel; a cup of warm water; an empty cup; and a piece of filter paper.Use the magnet to remove the iron. ...Use warm water to dissolve the salt. ...<span>Remove the sand from the salt water.</span></span>
Answer:

Explanation:
Given that,
Mass, m = 0.186 g
Volume occupies, V = 110 mL
We need to find the density of Nitrogen gas. The mass per unit volume is called density of an object. It is given by the formula as follows :

So, the required density is
.
The answer is B, i have the same class on plato. the principal only comes into effect when the equilibrium is disturbed
Answer:
A. Mass
Explanation:
Mass because ,mass is not a reliable measurement unlike the other ones.