Final answer:
The question is about balancing a chemical equation, but upon inspection, the given equation 2K₃PO₄ + 3Ca(NO₃)₂ → Ca₃(PO₄)₂ + 6KNO₃ is already balanced.
Step-by-step explanation:
The student asked to balance the chemical equation 2K₃PO₄ + 3Ca(NO₃)₂ → Ca₃(PO₄)₂ + 6KNO₃. Upon reviewing the equation, we can see that no balancing is required, as it is already balanced. There are 2 phosphate ions (PO₄³⁻) and 6 potassium ions (K⁻) from 2 units of K₃PO₄, combined with 3 calcium ions (Ca²⁻) and 6 nitrate ions (NO₃⁻) from 3 units of Ca(NO₃)₂ on the reactant side. On the product side, there is 1 unit of calcium phosphate (Ca₃(PO₄)₂) which contains 3 calcium ions and 2 phosphate ions, along with 6 units of potassium nitrate (KNO₃) contributing the same number of potassium and nitrate ions. Everything is accounted for, showing that the reaction is properly balanced in its initial form.