Will give use complete sentences to differentiate between acids and bases on the basis of their behavior when dissolved in water. give an example of each type.

Explanation:

Arrhenius base are defined as the specie which when dissolved in water dissociate to give hydroxide ions.  

For example, being an ionic compound when dissolved in water will give and ions.

On the other hand, Arrhenius acids are the species which when dissolved in water will dissociate to give hydrogen ions into the solution.

For example,

As HCl is dissociating in water to give hydrogen ions. Hence, it is an acid.

answer; i believe that the correct answer is (a) potassium(k)

i don,t know so just answer mine