2 years ago

A substance has a volume of 4,000 cm and a mass that is 2,000 g. What is the density of the substance.

Physics

1 answer:

podryga [215]2 years ago

5 0

Density is mass divided by volume making the answer 0.5 g/cm^3

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3 years ago

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almond37 [142]

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3 years ago

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alekssr [168]

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$1.2646\times10^{25}\ atoms$

Explanation:

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$Avogadro's \ Constant=6.022\times 10^{23} \ mol_1\\\\No\ of \ Atoms=Moles\times Avogadro's \ Constant\\\\=21\times 6.022\times 10^{23} \\\\=1.2646\times10^{25}\ atoms$

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3 years ago

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