Predicting Reaction: Ca(NO3)2 + NaHCO3 --> Ca(HCO3)2 or CaCO3 + NaNO3 + H20?

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The reaction between Ca(NO3)2 and NaHCO3 can yield either Ca(HCO3)2 or CaCO3, along with NaNO3 and water. The formation of CaCO3 is favored due to its low solubility, leading to precipitation. The presence of bicarbonate ions suggests that water may form, but the key factor is the stability of the products. To determine the correct reaction, consider solubility rules and the tendency of ions to form stable compounds. Understanding these principles will clarify whether water is produced in the reaction.
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Homework Statement



predict the reaction:

Ca(NO3)2 (aq) + NaHCO3 (aq) ----->

The Attempt at a Solution




Ca(NO3)2 (aq) + NaHCO3 (aq) -----> Ca(HCO3)2 (s) + NaNO3 (aq)

OR


Ca(NO3)2 (aq) + NaHCO3 (aq) -----> CaCO3 (s) + NaNO3 (aq) + H20 (l)

Will Ca2+ + CO32- combine, and H+ comes off to makeH20? I can't decide which is right. How can I tell if H20 will form or not?
 
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