Homework Help: Chemistry

Posted by Emily on Monday, June 27, 2011 at 10:13am.

If a solution of sodium phosphate, Na3PO4, is poured into seawater, precipitates of calcium phosphate and magnesium phosphate are formed. (Magnesium and calcium ions are among the principle ions found in seawater.) Write net ionic reactions for the reactions. Include physical states in your answers.

Formation of calcium phosphate

Formation of magnesium phosphate

Chemistry - DrBob222, Monday, June 27, 2011 at 2:11pm
3Ca^2+(aq) + 2PO4^3-(aq) ==> Ca3(PO4)2(s)
Mg3(PO4)2 is done the same way.

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