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added Arrhenius, Bronsted-Lowry, and Lewis definitions
A '''base''' is a [[molecule]] which accepts H<sup><small>+</small></sup> [[ion]]s in a [[chemical reaction]]. Bases have a bitter taste and turn red [[litmus paper]] blue. Bases feel slippery when dissolved in water. Most strong bases contain a [[hydroxide]] ion.
A '''base''' is a [[molecule]] which produces [[hydroxide]] ions when added to water (according to the Arrhenius definition), which accepts H<sup><small>+</small></sup> [[ion]]s in a [[chemical reaction]] (according to the Bronsted-Lowry definition), or which donates an [[electron]] pair in a reaction (according to the Lewis definition). Bases have a bitter taste and turn red [[litmus paper]] blue. Bases feel slippery when dissolved in water. Most strong bases contain a [[hydroxide]] ion.
[[Category:Chemistry]]
[[Category:Chemistry]]