Final answer:
The solution produced by adding HCl to calcium hydroxide is acidic due to the presence of excess hydrogen ions from the strong acid.
Step-by-step explanation:
The solution produced by adding HCl to calcium hydroxide is acidic.
When HCl, which is a strong acid, reacts with calcium hydroxide, a neutralization reaction occurs. The hydrogen ions from HCl react with the hydroxide ions from calcium hydroxide and form water. This results in the formation of calcium chloride and water.
Overall, the reaction can be written as:
HCl + Ca(OH)2 → CaCl2 + H2O
Since the reaction produces water, the solution becomes neutral but initially, it is acidic due to the presence of excess hydrogen ions from the strong acid.