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NaOH (sodium hydroxide) and HCl (hydrochloric acid) Dissociation Reaction Equations and neutralisation.

NaOH(aq)

< = >

Na+(aq)

+

OH-(aq)

HCl(aq)

< = >

H+(aq)

+

Cl-(aq)

OH-

+

H+

< = >

H2O

An hydroxide ion (OH^-) is basic or alkaline

An hydrogen ion (H⁺) is acidic.

An water molecule (H₂O) is neutral

It can be seen from the above equations that it requires one molecule of NaOH (sodium hydroxide) to neutralize one molecule of HCl (hydrochloric acid).