The reactions given are already balanced so we proceed to gather the standard enthalpy of formation values from the table.
Using values from Appendix C in the textbook, calculate the standard enthalpy change (kJ) for each of the following reactions.
2SO2(g) + O2(g) → 2SO3(g) ΔH°rxn =
Mg(OH)2(s) → MgO(s) + H2O(l) ΔH°rxn =
N2O4(g) + 4H2(g) → N2(g) + 4H2O(g) ΔH°rxn =
SiCl4(l) + 2H2O(l) → SiO2(s) + 4HCl(g) ΔH°rxn =
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