Answer:
Arrhenius acid & Bronsted-Lowry acid
Explanation:
First of all, the problem says that you have to convert the acid salt to its acidic form. If you take it to the neutral pH, that won't be acidic at all. As simple as that, you don't take it to neutral pH because it would lose its definition of being acidic afterall.
2K + Cl₂ ⇒ 2KCl
2Ca + O₂ ⇒ 2CaO
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