Final answer:
Calcium hydroxide, Ca(OH)2, is a strong base that dissociates almost completely into ions in an aqueous solution, making it a strong electrolyte.
Step-by-step explanation:
Ca(OH)2, also known as calcium hydroxide, is classified as a strong base. This is because it dissociates almost completely into calcium ions (Ca2+) and hydroxide ions (OH-) when dissolved in water. Strong bases like Ca(OH)2 are strong electrolytes, which means they conduct electricity well in an aqueous solution due to the high concentration of ions present.
It is important to note that strong bases are not the same as alkali metal hydroxides, which are the strongest bases due to their solubility and complete dissociation. However, heavy alkaline earth metal hydroxides, such as calcium hydroxide, are also considered strong bases despite being less soluble because the portion that dissolves does dissociate completely.