chemistry

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Calcium carbonate reacts with phosphoric acid to produce calcium phosphate, carbon dioxide, and water.

3 CaCO3(s) + 2 H3PO4(aq) Ca3(PO4)2(aq) + 3 CO2(g) + 3 H2O(l)

How many grams of phosphoric acid react with excess calcium carbonate to produce 3.29 g Ca3(PO4)2?

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