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An object has a volume of 23.5 cm cubed with a mass of 109.63 g it...

An object has a volume of 23.5 cm cubed with a mass of 109.63 g it is known Mercury density is 13.6 g/cm cubed platinum is 4.665 g/cm cubed copper is 8.92 g/cm cubed

, gold is 19.3 g/cm cubed. What is that unknown object? A) Mercury B) gold C) Platinum D) Copper

I know the answer is platinum but not sure how it was resolved

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Answer #1

Density= Mass/Volume

given mass = 109.63g

Volume= 23.5 cm3

Density= 109.63g/23.5cm3

Density = 4.665g/cm3

As we can see this is the density of PLATINUM

So the unknown object is Platinum

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