Final answer:
When HCl is formed, a hydrogen ion with a +1 charge and a chloride ion with a -1 charge are produced. Hydrogen chloride exhibits acidic behavior when dissolved in water, dissociating into H+ and Cl- ions.
Step-by-step explanation:
When hydrogen chloride (HCl) is formed, hydrogen forms an ion with a +1 charge; chlorine forms an ion with a -1 charge. During the dissolution in water, HCl exhibits its acidic behavior by dissociating and transferring an H+ ions to water, which leads to form a hydronium ion (H3O+). Chlorine, being more electronegative, holds on to the electron pair from the H-Cl bond forming a chloride ion (Cl−) with a -1 charge.
The reaction of HCl in water can be written as: HCl(g) + H2O(l) → H3O+ (aq) + Cl−(aq). This shows that hydrogen chloride dissociates into hydrogen and chloride ions in solution, with the hydrogen ion combining with a water molecule to form the hydronium ion.
The compound HCl undergoes a process called ionization when it is formed. The hydrogen atom in HCl receives an electron from the chlorine atom, forming a hydrogen ion (H+) with a +1 charge. The chlorine atom, on the other hand, forms an ion with a -1 charge, known as the chloride ion (Cl-).