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Iron has a density of 7.9 g/cm³. Gold has a density of 19.3 g/cm³. I have a piece of metal that has a volume of 200 cm³ and a mass of 3.86 kg. Is it gold or iron?
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4 votes
Iron has a density of 7.9 g/cm³. Gold has a density of 19.3 g/cm³.

I have a piece of metal that has a volume of 200 cm³ and a mass of 3.86 kg. Is it gold or iron?

User Hadi GhahremanNezhad
by
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1 Answer

4 votes
density = m/v
3.86kg=3860g
d= 3860/200
= 19.3g/cm^3
therefore it is gold.
User Fregas
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8.5k points
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