Question

What is relative density​

Answer 1

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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. The term "relative density" is often preferred in scientific usage.

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Answer 2

Answer:

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