Question

___ CaCO¬3 (s) + ____CH3CO2H ¬(aq) -->____ Ca(CH3CO2)2 (aq) + ____H2CO3 (aq)

Answer 1

Classify the type of reaction that occurred between the egg shell and acetic acid (Vinegar, CH3CO2H)

Answer 2

This is a reaction of dissolving a precipitate, exchange of ions and ultimately producing the weak Carbonic acid which immediately decomposes to CO2 and H2O. The egg shell consists of a large amount of CaCO3, so acetic acid is able to dissolve it.