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The standard enthalpy change for the following reaction is -986 kJ at 298 K. Ca(s) + O2(g) + H2(9) Ca(OH)2(5) AH = -986 kJ What

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The standard enthalpy change for the following reaction is -986 kJ at 298 K. Ca(s) + O2(g) + H2(9) Ca(OH)2(5) AH = -986 kJ What is the standard enthalpy change for the reaction at 298 K? Ca(OH)2(s) Ca(s) + O2(g) + H2(g) KJ

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