The dissociation of sodium phosphate is;
Na3PO4(aq) -> 3Na+(aq) + PO43-(aq)
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The net ionic equation for Na3PO4 is 3Na+ + PO4^3- -> Na3PO4. This equation shows that the sodium ion (Na+) and phosphate ion (PO4^3-) combine to form sodium phosphate (Na3PO4) without any spectator ions.
The net ionic equation for the reaction between Al2(SO4)3(aq) and Na3PO4(aq) is: 2Al^3+(aq) + 3PO4^3-(aq) → AlPO4(s) This reaction forms aluminum phosphate, which is a solid precipitate that forms when aluminum ions and phosphate ions react together.
To determine the net ionic equation, write out the balanced molecular equation first. Then, write the complete ionic equation with all ions separated. Finally, cancel out spectator ions (ions that appear on both sides of the equation) to arrive at the net ionic equation, which shows only the reacting ions.
The net ionic equation for the reaction between Na3PO4(aq) and CaCl2(aq) is: 3 Na+(aq) + 2 PO4^3-(aq) + 3 Ca^2+(aq) + 6 Cl-(aq) → 6 Na+(aq) + 2 Ca3(PO4)2(s) This equation shows the formation of solid calcium phosphate when sodium phosphate and calcium chloride are mixed.
To write a net ionic equation from a complete ionic equation, you remove the spectator ions that appear on both sides of the equation. The remaining ions that participate in the reaction are then included in the net ionic equation. This simplifies the equation to show only the ions that undergo a chemical change.
The net ionic equation for the reaction between zinc bromide (ZnBr2) and sodium phosphate (Na3PO4) to produce a precipitate of zinc phosphate (Zn3(PO4)2) is: 3Zn^2+ + 2PO4^3- -> Zn3(PO4)2 Since all the ions are participating in the reaction, there is no spectator ion to cancel out in this net ionic equation.