Final answer:
The correct balanced chemical equation for the reaction between potassium phosphate and calcium nitrate is K3PO4(aq) + Ca(NO3)2(aq).
Step-by-step explanation:
The correct balanced chemical equation for the reaction between potassium phosphate (K3PO4) and calcium nitrate (Ca(NO3)2) is option A. K3PO4(aq) + Ca(NO3)2(aq).
In this reaction, the potassium phosphate dissociates into three potassium ions (K+) and one phosphate ion (PO4³-), while the calcium nitrate dissociates into one calcium ion (Ca²+) and two nitrate ions (NO3-). Therefore, when combined, they form three molecules of potassium nitrate (KNO3) and one molecule of calcium phosphate (Ca3(PO4)2).
Option B. KNO3(aq) + Ca3(PO4)2(aq) is incorrect because it does not accurately represent the dissociation of the compounds and the formation of the products. Option C. K2PO4(aq) + Ca(NO3)2(aq) is also incorrect as it does not account for the correct number of potassium ions in the reaction. Option D. K3(PO4)2(aq) + Ca(NO3)2(aq) is incorrect because it does not represent the balanced and correct dissociation and formation of the products.