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Chemistry: Challenges and Solutions

Salt Water Solution (animation)

When salt, or sodium chloride, comes in contact with water, the positively-charged sodium ions become surrounded by the negatively charged oxygen ends of the water molecules, and the negatively charged chloride ions become surrounded by the positively charged hydrogen ends of the water molecules. Once separated, the sodium and chloride ions diffuse throughout the entire volume of water, distributing themselves evenly.

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Chemistry: Challenges and Solutions


Produced by the Harvard-Smithsonian Center for Astrophysics. 2014.
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