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What Is the Expression for the Ionic Compound Barium

question 29

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What is the What is the   expression for the ionic compound barium phosphate,Ba<sub>3</sub>(PO<sub>4</sub>) <sub>2</sub>? A)    = [Ba<sup>2+</sup>] <sup>2 </sup>[PO<sub>4</sub><sup>3-</sup>]<sup>3</sup> B)    = [Ba<sup>2+</sup>]<sup>3</sup> [PO<sub>4</sub><sup>3-</sup>]<sup>4</sup> C)    = [Ba<sup>2+</sup>]<sup>3</sup> [PO<sub>4</sub><sup>3-</sup>]<sup>2</sup> D)    = [Ba<sup>2+</sup>] [PO<sub>4</sub><sup>3-</sup>] E) none of the above expression for the ionic compound barium phosphate,Ba3(PO4) 2?


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