Answer:
The answer is
<h2>0.052 g/cm³</h2>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 2.5 g
volume = 48 cm³
The density is

We have the final answer as
<h3>0.052 g/cm³</h3>
Hope this helps you
They have the same number of electrons in their outer shells. Elements in the same group often share similar chemical properties because the outer electrons generally determine a lot of their properties
15. D is correct, exothermic reactions release heat
I am not sure about 16
Continuous spectrum and line spectrum are two types of spectra; their main difference is that continuous spectrum contains no gaps whereas line spectrum contains many gaps.