Question

Write the complete molecular equation (CME), the complete ionic equation (CIE), and the net ionic equation

(NIE) for a mixture of the following aqueous solutions. Use solubility rules to determine what solid is formed, if any.

Potassium carbonate and Magnesium nitrate

Ammonium sulfide and Copper (II) acetate

Mercury (I) nitrate and Sodium iodide

Potassium oxalate and Lead (II) nitrate

Answer 1

Complete molecular equation (CME): K₂CO₃ (aq)+ Mg(NO₃)₂ (aq) → 2KNO₃(aq) + MgCO₃(s)

Complete ionic equation (CIE): 2K⁺(aq)+CO₃^2-(aq)+Mg²⁺(aq)+2NO₃^-(aq) → 2K⁺(aq)+ 2NO₃^-(aq)+ MgCO₃(s)

Net ionic equation (NIE): Mg²⁺(aq)+ CO₃^2-(aq)→ MgCO₃(s)

Complete molecular equation (CME): (CH₃COO)₂Cu (aq) + (NH₄)₂S (aq) → 2CH₃COONH₄ (aq) + CuS(s)

Complete ionic equation (CIE): 2CH₃COO^--(aq)+Cu²⁺⁽aq)+ 2NH₄⁺(aq)+S^2-(aq) → 2CH₃COO^--(aq)+ 2NH₄⁺(aq)+ CuS(s)

Net ionic equation (NIE): Cu²⁺⁽aq)+ S^2-(aq) → CuS(s)

Complete molecular equation (CME): Hg(NO₃)₂ (aq)+ 2 NaI(aq) → HgI₂(s) + 2 NaNO₃ (aq)

Complete ionic equation (CIE): Hg²⁺(aq)+2NO₃^-(aq)+2Na⁺(aq)+2I^-(aq) → HgI₂(s)+ 2Na⁺(aq)+ 2NO₃^-(aq)

Net ionic equation (NIE): Hg²⁺(aq)+ 2I^-(aq) → HgI₂(s)

Complete molecular equation (CME): Pb(NO₃)₂ (aq) + K2C₂O₄ (aq) → PbC₂O4(s) + 2 KNO₃ (aq)

Complete ionic equation (CIE): Pb²⁺(aq)+2NO₃^-(aq)+2K⁺(aq)+C₂O₄^2-(aq) → PbC₂O₄(s) +2K⁺(aq)+ 2NO₃^-(aq)

Net ionic equation (NIE): Pb²⁺(aq)+ C₂O₄^2-(aq) → PbC₂O₄(s)