What is the chemical formula for zinc (II) phosphate?

Zinc(II) ions have a charge of Zn²⁺, and phosphate ions have a charge of PO₄³⁻. The smallest balanced combination has three zinc ions (+6) and two phosphate ions (−6), giving Zn₃(PO₄)₂. Choice B is zinc phosphate; choice C contains nitrate instead of phosphate.

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