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Tap water usually contains dissolved gases notably air which is composed mainly of nitrogen and oxygen, along with some carbon dioxide, so when the tap water is allowed to stand some of the dissolved air comes out of the water because liquids in general release dissolved gas as they warm up. This science fair project will illustrate that gases are dissolved in most natural and municipal water.
It is an educational content by education.com.
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Fecha publicación: 12.5.2016
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