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When concentrated [tex]CaCl_{2}(aq)[/tex] is added to [tex]Na_{2}HPO_{4}[/tex], a white precipitate forms that is 38.7% Ca by mass. Write a net ionic equation representing the probable reaction that occurs.

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Janay1012
Molecular equation: 

Na2CO3 (aq) + CaCl2 (aq) → CaCO3 (s) + 2 NaCl (aq) 


Ionic equation: 

2 Na⁺ (aq) + CO3²⁻ (aq) + Ca²⁺ (aq) + 2 Cl⁻ (aq) → CaCO3 (s) + 2 Na⁺ (aq) + 2 Cl⁻ (aq) 


Net ionic equation: 

CO3²⁻ (aq) + Ca²⁺ (aq) → CaCO3 (s)

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