In a dilute acid solution most if not all of the molecules will split into ions.
For example HCl is a strong acid and 100% of the molecules will split into
H+ & Cl-
in a weak acid solution only a portion of the molecules will turn into ions because the ionization percentage isn't as large. Which will essentially leave a high percentage of un-reacted molecules
Answer:

Explanation:
Hello,
In this case, for the given reaction:

We find a 1:2 molar ratio between the acid and the base respectively, for that reason, at the equivalence point we find:

That in terms of concentrations and volumes we can compute the concentration of the acid solution:

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C) Nucleus...... Hope it helps, Have a nice day :)