Question

what is 'relative density'?

Answer 1

Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity usually means relative density with respect to water. ... For example, an ice cube, with a relative density of about 0.91, will float.

Answer 2

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The relative density of a substance is the ratio of its density to that water.

✪The relative density of a substance is the ratio of the mass of an equal volume of water .