Question

Juan finds a foreign coin that is so dirty that he can't tell what it is made of. He knows the density of these common materials and decides to find out if the coin is made of one of the materials. The mass of the coin is about 12 g, and the volume is about 4 cm3. Which type of material could it be?A.SilverB.AluminumC.GoldD.Steel

Answer 1

We are given the mass and volume of an object. We can calculate the density using the following formula:-

`\rho=(m)/(V)`

Where:

`\begin{gathered} m=\text{ mass} \\ V=\text{ volume} \end{gathered}`

Now, we plug in the values:

`\rho=(12g)/(4cm^3)`

Solving the operation:

`\rho=3\text{ g/}cm^3`

Therefore, the density of the material is 3 g/cm^3. Therefore, the material with the density that is the closest to the one we calculated is aluminum.