The chemical formula for zinc carbonate is \( \text{ZnCO}_3 \). When zinc carbonate interacts with water, it typically does not have a distinct reaction that would yield a new compound, although it may dissolve to some extent.
In the context of dissolution, one can represent the process as follows:
\[ \text{ZnCO}_3 (s) + \text{H}_2\text{O} (l) \rightleftharpoons \text{Zn}^{2+} (aq) + \text{CO}_3^{2-} (aq) + \text{H}_2\text{O} (l) \]
However, it's important to note that zinc carbonate is slightly soluble in water, and in many contexts, it does not fully dissociate in this manner. If you have a specific reaction or context in mind, please provide more details!