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Which of the following is not electrically balanced?

A. PO43-(aq) + H+(aq) HPO42-(aq)

B. 2Ag+(aq) + Zn(aq) Zn2+(aq) + 2Ag(s)

C. H2PO4–(aq) 2H+(aq) + PO4(aq)

D. CO32-(aq) + 2H+(aq) H2CO3(aq)

E. Pb2+(aq) + S2-(aq) PbS(s)

1 Answer

  • 2 months ago

    C. H2PO4–(aq) 2H+(aq) + PO4(aq) 

    The phosphate group needs to have a 3- charge on it.

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