Ram tried mixing oil and water by constant stirring, but they didn't mix at all He then added dish soap in the mixture and to his surprise oil and water mixed. Why?
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When oil, water and dish soap are mixed together, the oil and water don't separate like they did when they were the only two items in the jar. This is because of the chemistry of the oil, water and soap molecules. Oil (and other fats) are made of nonpolar molecules, meaning they cannot dissolve in water.
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when we put some oil in water instead of mixing it together, it starts floating on top of the water. Because it is less dense i.e. as spoonful of oil weighs less than a spoonful of water. When we sprinkle salt in water, now what will happen? Salt is denser than water, it weighs the oil down and makes it to sink. Once the salt dissolves in water, the oil floats back up to the top of the water.
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