Martina has a sample of an unknown substance. She measures the substance. Its mass is 13.5 grams, and its volume is 5 cm3. Which metal might her sample be made of?
Answer : Aluminium.
Explanation : To find the correct answer we can find out the density of the sample,
Using the density formula which is,
Density ρ = \(\frac{mass (m)}{volume (v)}\)
Here, Mass = 13.5 g; Volume = 5 \(cm^{3}\)
on calculating we get,
Density = \(\frac{13.5}{5} = 2.7 g/cm^{3}\)
Which shows that, aluminum has this density. Aluminum has density as \(2.7 g/cm^{3}\)
So, the correct answer will be aluminum.