Chemistry: Please help i m not good at this 3, (i ll give brainliest to the most helpful answer)

Please help i m not good at this 3, (i ll give brainliest

ijohnh14

15.03.2021

$\large\boxed{\large\boxed{volume=1.5cm^3}}$

Explanation:

Translation:

What volume will 12g of iron occupy?

Solution

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

$Density=\dfrac{mass}{volume}$

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:

$7.874g/cm^3=\dfrac{12g}{volume}\\ \\ \\ volume=\dfrac{12g}{7.874g/cm^3}\\ \\ \\ volume=1.5cm^3$

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

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