Write the net ionic equation for this reaction occurring in water: Sodium phosphate and calcium chloride are mixed to form sodium chloride and calcium phosphate.
1. No reaction occurs.
2. 2Na3PO4 + 3Ca2+ -> 6Na+ + Ca3(PO4)2
3. 2 PO3−4 + 3Ca2+ -> Ca3(PO4)2
4. PO2−4 + Ca2+ -> CaPO4
5. 2 PO3−4 + 3CaCl2 -> 6Cl− + Ca3(PO4)2
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You answered this wrong. YOU MADE ME MISS THIS QUESTION!!
To write the net ionic equation for the given reaction, we first need to write the balanced equation for the reaction and then identify the spectator ions.
The balanced equation for the reaction is:
2 Na3PO4 + 3 CaCl2 -> 6 NaCl + Ca3(PO4)2
To write the net ionic equation, we remove the spectator ions, which are the ions that remain unchanged throughout the reaction and do not participate in the formation of products.
The spectator ions in this reaction are the sodium ions (Na+) and the chloride ions (Cl-).
The net ionic equation is therefore:
2 PO3-4 + 3 Ca2+ -> Ca3(PO4)2
So, the correct option is 3. 2 PO3−4 + 3Ca2+ -> Ca3(PO4)2.
Na3PO4(aq) + CaCl2(aq) ==>Ca3(PO4)2(s) + NaCl(aq)
You can balance it and convert to net ionic equation following the last two-three questions I've done for you.