¿Qué volumen ocuparán 12 g de hierro?

Explanation:

Translation:

Iron is a solid substance at room temperature. You can find the volume of solids (and of not solids) using the density.

You can obtaindthe density of most pure substances in the internet. The density of iron at room temperature is 7.874 g/cm³.

Thus, substituting in the formula, you get:

The answer is rounded to two significant figures because the input, 12g, has two significant figures.