Question

how does the knowledge of relative density help in determining whether a substance floats or sinks in water​

Answer 1

Answer:

relative density is numerically equal to the density of a substance at 4°C , so if it is greater than 1 , then the substance will sink and vice versa

Answer 2

Answer:

If the relative density is more than 1 than the substance will sink and when the relative distance is less than 1 it will float.

Relative density = density of a substance

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density of water

I hope you understand the concept.