Ca(OH)2 + NH4Cl

When calcium hydroxide \((Ca(OH)_2)\) reacts with ammonium chloride \((NH_4Cl)\), a double displacement reaction occurs. In this reaction, calcium ions (\(Ca^{2+}\)) from calcium hydroxide will react with chloride ions (\(Cl^{-}\)) from ammonium chloride, and ammonium ions \((NH_4^+)\) will react with hydroxide ions \((OH^{-})\). The overall reaction can be represented as follows: \[ Ca(OH)_2 + 2 NH_4Cl \rightarrow CaCl_2 + 2 NH_3 + 2 H_2O \] ### Products: 1. **Calcium Chloride (CaCl₂)**: This is a soluble salt that dissociates into calcium ions and chloride ions in solution. 2. **Ammonia (NH₃)**: This is released as a gas in this reaction. 3. **Water (H₂O)**: This is formed from the reaction of the hydroxide ions with the ammonium ions. ### Summary: The reaction between calcium hydroxide and ammonium chloride leads to the formation of calcium chloride, ammonia, and water. This is an example of an acid-base reaction where calcium hydroxide acts as a base and ammonium chloride provides the ammonium ions which, in the presence of a strong base, will release ammonia gas.