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:
- Calcium Chloride (CaCl₂): This is a soluble salt that dissociates into calcium ions and chloride ions in solution.
- Ammonia (NH₃): This is released as a gas in this reaction.
- 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.
