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Using the Supplemental Data, calculate the standard enthalpy change (in kJ/mol) for each of the following reactions. (a) A1203(s) + 3 H2(g) —' 2 Al(s) + 3 H20(/) kJ/mol (b) 2 NaOH(s) + CO2(g) —> Na2CO3(s) + H20(g) k..1/mol (c) 2 Cu(s) + Cl2(g) —> 2 CuCI(s) kJ/mol (d) Ni(s) + Cl2(g) —' NiCl2(s) t kJ/mol