Question

hydrochloric acid     +   potassium hydroxide       à  potassium chloride  +  water 

Answer 1

Solution:

hydrochloric acid + potassium hydroxide → potassium chloride + water

HCl(aq) + KOH(aq) → KCl(aq) + H₂O(l)

H⁺(aq) + OH^-(aq) → H₂O(l)

This is a neutrailization reaction as H⁺ ions combines with OH^- ions to form water (H₂O).