Answer:
<h3>The answer is 30 g/cm³</h3>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 60 g
volume = 2 cm³
We have

We have the final answer as
<h3>30 g/cm³</h3>
Hope this helps you
The substance you would expect to have a low melting point would be carbon dioxide, so the correct answer would be A
Is there something else that goes along with the question?
It is not a pure substance, because a solution are mixed chemicals in a way that the molecules are not bonded with one another. Thus, separating them from compounds and elements, which are pure substances.