Chemistry question I'm struggling with... I feel like I'm almost there but I'm not getting the right answer, I would really appreciate some help!
The molar enthalpy change on decomposition of calcium carbonate into calcium oxide and carbon dioxide is 178kJmol-1.
Given the lattice enthalpies of CaCO3 (-2799kJmol-1) and CaO (-3396kJmol-1) find the enthalpy change when bonding an oxide ion to carbon dioxide in the gas phase.
Any clues or explanations method wise would literally be amazing tysm