Dissolve two spoons of common salt in halt a cup of water. now if you want to get the salt back ,what will you do.
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To get salt back from a half cup of water with two spoons of common salt already dissolved in it, we can either heat the water in a pan on a stove or we can keep the water out in sun in a plate. Heat will evaporate the water in form of water vapour leaving behind the salt.
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