Write balanced complete ionic equation for Na3PO4(aq)+NiCl2(aq)-->Ni3(PO4)2(s)+NaCl(aq) Express...


Write balanced complete ionic equation for {eq}Na_3PO_4(aq)+NiCl_2(aq) \rightarrow Ni_3(PO_4)_2(s)+NaCl(aq){/eq} Express your answer as a chemical equation. Identify all of the phases in your answer.

Net Ionic Equation:

All reactions involve multiple elements and/or compounds, but not all species are actually involved in the chemical reaction. The ions that are present in the same phase of matter on both sides of the reaction are called spectator ions. They are removed from the equation resulting in the net ionic equation.

Answer and Explanation: 1

The complete ionic equation is {eq}3Na^+(aq)+2PO_4^{-3}(aq)+3Ni^{+2}(aq)+2Cl^-(aq)\rightarrow Ni_3(PO_4)_2(s)+3Na^+(aq)+2Cl^-(aq) {/eq}.

We can only separate aqueous ionic compounds into their ions. Solids, water or gases remain intact. If we were to continue and write the net ionic equation we would cancel the spectator ions {eq}Na^+(aq) {/eq} and {eq}Cl^-(aq) {/eq}. These ions are not involved in the reaction because they aren't in an insoluble compound, water or a gas.

Learn more about this topic:

Precipitation Reactions: Predicting Precipitates and Net Ionic Equations


Chapter 10 / Lesson 9

Study precipitate reactions. Determine precipitate solubility according to solubility rules. Learn to write ionic equations by following a molecular reaction.

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