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Density is the mass divided by the volume. The mass is given as 6.4 grm so we have to calculate the volume. A cube of 2 cm per side has a volume of 2 x 2 x 2 equals 8 cm3. Thus the density of the substance is

6.4 divided by 8 equals 0.8 grm per cm3 (in c.g.s units) or

800 Kg per m3 (in SI units)

This is less dense than water.

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12y ago
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1mo ago

The volume of the cubical block is calculated as (2 \text{ cm} \times 2 \text{ cm} \times 2 \text{ cm} = 8 \text{ cm}^3). Density is calculated as mass divided by volume, so the density of the cubical block is (6.4 \text{ g} / 8 \text{ cm}^3 = 0.8 \text{ g/cm}^3).

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Q: What is the density of a cubical block of side 2 cm with a mass 6.4 g?
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