Final answer:
The net ionic equation for the reaction between ammonium chloride (NH4Cl) and mercury(I) nitrate (Hg2(NO3)2) is: Hg2^2+ + 2Cl^- + 2NH4^+ → Hg2Cl2 + 2NH4^+.
Step-by-step explanation:
The net ionic equation for the reaction between ammonium chloride (NH4Cl) and mercury(I) nitrate (Hg2(NO3)2) is:
Hg22+ + 2Cl- + 2NH4+ → Hg2Cl2 + 2NH4+
Option C (Hg22+ + Cl- → Hg2Cl2) matches this equation and is the correct answer.