Question

A metal carbonate x and a metal by carbonate y reacts with acid to give a gas which turns lime water milky. a). identify the gas and compound x and y. b). write the equation of compound x and y with antacid. c). write the equation of the gas reacting with lime water. d). what happens when access of that gas is passed through lime water..

Answer 1

when access of CO2 is passed through lime water the milkiness disappears...
The reaction involves:-
CaCO3+H2O+CO2------» Ca(HCO3)2