chemistry

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Using the following thermochemical data, what is the change in enthalpy for the following reaction?
Ca(OH)¿(aq) + HCl(aq) d CaCl¿(aq) + H¿O(l)

CaO(s) + 2HCl(aq) d CaCl¿(aq) + H¿O(l),  DH = -186 kJ
CaO(s) + H¿O(l) d Ca(OH)¿(s),  DH = -65.1 kJ

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