What happens to (a) the $H^{+}$ ions, and (b) temperature of the solution, when an acid is neutralised ?

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Solution

Acid is ionised to give $H^{+}$ aq ions and Base is ionised to give $O H^{-}$ ions both of which combine to form $H_{2}$ O and the temperature of the solution rises because it is a exothermic reaction .

(a) $H^{+}$ ions decreases
(b)Temperature increases

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