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| | | #REDIRECT [[Hydrogen ion]] |
| #REDIRECT [[hydrogen ion]] | |
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| == hydrogen ion ==
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| <div class="definition"><div class="short_definition">A positively charged species of chemical, symbol H<sup>+</sup>, the ionized form of the [[hydrogen]] atom.</div><br/> <div class="paragraph">The hydrogen ion is hydrated in aqueous solutions and is usually written as H<sub>3</sub>O<sup>+</sup>. Neutral water ([[pH]] 7) contains hydrogen ions at a concentration of 10<sup>-7</sup> mol L<sup>-1</sup>. Dissolution of acids in water leads to an increase in the hydrogen ion concentration, and thus a decrease in the PH.</div><br/> </div>
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| [[Category:Terms_H]]
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