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The volume of 50 g of a substance is 20 cm3. If the density of water is 1 g cm−3, will the substance float or sink?
Asked by Nagasanthoshi Last Modified
Answer 
Tasneem
If the density of an object is more than the density of a liquid, then it sinks in the liquid. On the other hand, if the density of an object is less than the density of a liquid, then it floats on the surface of the liquid.
Here, density of the substance = 
The density of the substance is more than the density of water (1 g cm−3). Hence, the substance will sink in water.
read less
Mass = 50g
volume = 20cm³
density = mass/volume = 50/20 = 2.5 g/cm³
density of water = 1 g/cm³
Since the density of the substance is greater than the density of water, it will sink in water.
The volume of water displaced = 20 cm³
mass of water displaced = volume×density = 20×1 = 20g
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