For each reaction, identify the precipitate or lack there of CaCl_2(aq) + K_2CO_3(aq) rightarrow CaCO_3

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For each reaction, identify the precipitate or lack there of.

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Answer:

According to solubility rules, precipitate is the one which is insoluble in water.
CaCl2 + K2CO3 ---- > CaCO3 + KCl
CaCO3 is insoluble in water and it is a precipitate
FeCl2 + (NH4)2SO4 ----- > FeSo4 + 2NH4Cl

In tis reaction no precipitate is formed.