Question

what is relative density​

Answer 1

The ratio of the density of a substance to the density of a standard, usually water for a liquid or solid, and air for a gas.

Answer 2

Answer:

Relative density, or specific gravity, is the ratio of the density of a substance to the density of a given reference material. Specific gravity for liquids is nearly always measured with respect to water at its densest; for gases, air at room temperature is the reference.

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