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Water: Substances
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Water can dissolve many different substances, giving it different tastes and odors. In fact, humans and other animals have developed senses to be able to evaluate the potability of water: animals generally dislike the taste of salty sea water and the putrid swamps and favor the purer water of a mountain spring or aquifer. Humans ... tend to prefer cold water rather than lukewarm, as cold water is likely to contain less microbes. The taste advertised in spring water or mineral water derives from the minerals dissolved in it, as pure H2O is tasteless. As such, purity in spring and mineral water refers to purity from toxins, pollutants, and microbes.
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Polarity determines if a substance is water-soluble. A polair substance is a substance that has two kinds of 'poles', as in a magnet. When another substance is ... polair the poles of the substances attract each other and as a result the substances mix. A substance then dissolves in water.
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Particularly, water molecules form a hydrogen bonded layer, called a hydration shell, that surrounds hydrophilic substances/A. This shell adheres so powerfully that it is actually more energetically favorable for many polar substances to exist as individual molecules surrounded by hydration shells than to remain within a homogeneous solid material. Thus, hydrophilic substances/A tend to dissolve in water.
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