Identify the correct net ionic equation for the reaction that occurs when solutions of Na₃PO₄ and Ca(NO₃)₂ are mixed. A)Ca²⁺ + PO₄^2-(aq) $\rarr$ CaPO₄(s) B)3Ca²⁺(aq) + 2PO₄^3-(aq) $\rarr$Ca₃(PO₄)₂(s) C) Na⁺(aq) + NO₃^- $\rarr$ NaNO₃(s) D) Na⁺(aq) + Ca²⁺(aq) + PO₄^3-(aq) $\rarr$ NaCaPO₄(s) E)2 Na₃PO₄(aq) + 3Ca(NO₃)₂(aq) $\rarr$ 6NaNO₃(s) + Ca₃(PO₄)₂(s)

Question

Quizplus · Accepted Answer

The correct net ionic equation can be obtained by cancelling the spectator ions, i.e., the ions that appear on both sides of the equation in their original form. In this case, the complete ionic equation for the reaction is:

Na+ + S2- + Ca2+ + NO3- + 2OH- → CaS + 2Na+ + NO3- + 2H2O

The spectator ions are Na+, NO3-, and OH-. They do not participate in the reaction and can be omitted from the net ionic equation. The remaining ions are S2-, Ca2+, and H2O. The balanced net ionic equation is:

Ca2+ + S2- → CaS

Choice B is the only one that represents this equation.

Identify the Correct Net Ionic Equation for the Reaction That →\rarr→

Identify the Correct Net Ionic Equation for the Reaction That $\rarr$