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Consider the dissolution of CaCl2. Determine ΔH for the reverse reaction.CaCl2(s) → Ca2+(aq) + 2 Cl–(aq) ΔH = –81.5 kJ/mol

Consider the dissolution of CaCl₂. Determine ΔH for the reverse reaction.
CaCl₂(s) → Ca²⁺(aq) + 2 Cl^–(aq) ΔH = –81.5 kJ/mol