There are 3 reactions of Calcium Carbonate, CaCO₃, that can be formed in this particular problem:

Reaction 1: Calculate the ΔH₁
Reaction 2: ΔH₂ = -635.1 kJ
Reaction 3: ΔH₃ = 178.3 kJ

There are 3 reactions of Calcium Carbonate CaCO that can be formed in this particular problem Reaction 1 Calculate the ΔH Reaction 2 ΔH 6351 kJ Reaction 3 ΔH 17 class=