Celluhh
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When hydrogen chloride dissociates in water , does it form ions or atoms ?
Celluhh said:The term that HCl 'dissociates' in water actually doesn't mean that suddenly HCl molecule breaks into H+ and Cl-, because if that is the case one will need to supply enormous amount of energy.
What actually happens is that HCl REACTS with water. since water is considered to be strong basic when compared to HCl, so what really happens is
HCl + H2O --> [H3O+][Cl-]
and this reaction is an exothermal reaction, that's why when you dilute HCl with water the you'll notice that the reaction glass will be slightly warmer.