# Is calcium carbonate soluble in water?

$\text{Calcium carbonate}$ is soluble in water to the extent of $13 \cdot \text{ppm}$ in water, i.e. $0.013 \cdot g \cdot {L}^{-} 1$...clearly in acidic solution, the carbonate will be decomposed to carbon dioxide and soluble calcium chloride...
$C a C {O}_{3} \left(s\right) + 2 H C l \left(a q\right) \rightarrow C a C {l}_{2} \left(s\right) + {H}_{2} O \left(l\right) + C {O}_{2} \left(g\right) \uparrow$