Provide equation for ionization of a strong acid in water solution?

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Strong acid completely ionizes in the solution. Meaning, the dissociation of H+ in the solution is complete. 

HA  +  H2O    --->  H3O+  +  A-

The ionization of strong acid in water produces hydronium ion and a conjugate base,

Let us use HCl or commonly known as Hydrochloric acid. As the name suggests, this compound is an acid. Generally an acid, is a proton donor, has a pH below 7, neutralizes base and turns blue litmus paper to red. This also means that in a solution (in water) HClO4 produces Hydronium ions (H3O+ ions).

The chemical equation for the dissociation of Hydrochloric (HCl) in the solution can be written as:

HCl (aq) + H2O ---> H3O+   +   Cl-       

 **hydronium ions can be represented as H3O+ or simply H+. 

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