Hi! I am having trouble understanding how a substance only slightly soluble in water is considered as a strong base. Isn't the definition of a base a substance that will increase the amount of OH- in a solution? In that case, shouldn't calcium hydroxide be considered a weak base because of its limited ability to dissociate into Ca+ and OH- ions? Can someone explain this please? I am seeking to understand this because I don't know how to express the net ionic equation for the acid-base neutralization involving Ca(OH)2 and a strong acid. Will it be: Ca(OH)2 (aq) + 2H+ (aq) -> Ca2+ (aq) + H2O (l) or just simply: OH- (aq) + H+ -> H2O (l) Thanks so much!