Final answer:
Calcium hydroxide (Ca(OH)2) is a strong base and a strong electrolyte. It fully ionizes in solution, which classifies it among the hydroxides of heavier alkaline earth metals with strong basic and electrolytic properties. The correct answer is o Strong base strong electrolyte.
Step-by-step explanation:
Calcium hydroxide, often denoted as Ca(OH)2, is classified as a strong base and a strong electrolyte. It is among the hydroxides of the heavier alkaline earth metals (like Ca, Sr, and Ba) that dissociate almost completely in water to produce a high concentration of hydroxide ions (OH-), indicating strong basic properties.
Despite its relatively low solubility in water, the portion that does dissolve dissociates into calcium ions (Ca2+) and hydroxide ions (OH-), making it a strong electrolyte.
When calcium hydroxide is dissolved in water, the following reaction occurs: Ca(OH)2 (s) → Ca2+ (aq) + 2 OH- (aq). This reaction demonstrates the complete ionization of the dissolved calcium hydroxide, further supporting its classification as a strong base and strong electrolyte.