The Diphosphate Ion Is a Biologically Important Polyatomic Ion

question 78

Multiple Choice

The diphosphate ion is a biologically important polyatomic ion. If the ionic compound calcium diphosphate has the formula Ca₂P₂O₇,which correctly represents the ion symbol of the diphosphate ion?

• A)P₂O₇^2-
• B)PO^4-
• C)2 PO₄^6-
• D)P₂O₇^4-

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