A metal cube has a mass of 20 g and a volume of 5 ml. What is the density? Is the cube made of pure aluminum? Explain your answer in the "other" area. * A.2.7 g/mL B.4 g/mL C.100 g/ml D.Yes it is aluminum E.No it is not aluminum Other:__________________________________________________________

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Muscardinus Muscardinus · Answer 1 · 2020-09-08T02:34:25+02:00

Explanation:

Given that,

Mass of metal cube, m = 20 g

Volume of cube, V =5 mL

We need to find the density of the cube. Mass per unit volume equals density.

[tex]d=\dfrac{m}{V}\\\\d=\dfrac{20\ g}{5\ mL}\\\\d=4\ g/mL[/tex]

So, the density of the cube is 4 g/ml.

We know that the density of Aluminium is 4 g/mL.

So, the cube is not Aluminium cube.

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virtuematane virtuematane · Answer 2 · 2022-01-07T12:42:50+01:00

The density of Aluminium is 2.7 g/mL. The cube is not the Aluminium cube.So, option B and E is correct

Mass of metal cube, m = 20 g

Volume of cube, V =5 mL

The formula for density is as follows:-

[tex]Density=\frac{Mass}{Volume} \\\\[/tex]......(1)

Substitute 20 g for mass, and 5 ml for volume in the above equation as follows:-

[tex]Density=\frac{20\ g}{5\ mL} \\\\=4\ g/mL[/tex]

So, the density of the cube is 4 g/ml.

We know that the density of Aluminium is 2.7 g/mL. So, the cube is not the Aluminium cube. So option B and E are correct.

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