Final answer:
Hydrochloric acid and aqueous calcium hydroxide react to create water and aqueous calcium chloride, with the balanced equation being 2HCl(aq) + Ca(OH)2(aq) → CaCl2(aq) + 2H2O(l). The net ionic equation shows the formation of water from hydrogen and hydroxide ions: 2H+(aq) + 2OH−(aq) → 2H2O(l).
Step-by-step explanation:
Mixing hydrochloric acid (HCl) with aqueous calcium hydroxide (Ca(OH)2) forms water (H2O) and aqueous calcium chloride (CaCl2). The balanced chemical equation for this reaction is:
2HCl(aq) + Ca(OH)2(aq) → CaCl2(aq) + 2H2O(l)
The complete ionic equation breaks down all strong electrolytes into their constituent ions:
2H+(aq) + 2Cl−(aq) + Ca2+(aq) + 2OH−(aq) → Ca2+(aq) + 2Cl−(aq) + 2H2O(l)
The net ionic equation includes only the ions participating in the reaction, omitting the spectator ions:
2H+(aq) + 2OH−(aq) → 2H2O(l)
The reaction simplified to the net ionic equation shows the neutralization process where hydrogen ions combine with hydroxide ions to form water.