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smooch92 smooch92
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11 years ago
A. NaCl and KNO3
B. Ca(NO3)2 and NaCl
C. Na2CO3 and CaCl2
D. NaHco3 and Ca(NO3)2
E. Ca(HCO3)2 and KNO3

Can you please explain how you got the answer. Please. Thank you!!! Slight Smile
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wrote...
11 years ago
The answer is C since as Na2CO3 and CaCl2 dissolve, both being soluble, they'll form insoluble CaCO3 by double displacement. However the dil HCl destroys carbonates giving CO2 and a soluble
Salt.
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