A scientist measures the standard enthalpy change for this reaction to be -146.7 kJ/mol. NH NO3(aq)-N20(g) + 2 H2O(1) Based on this value and the standard formation enthalpies for the other substances, the standard formation enthalpy of N2O(g) is kJ/mol.​

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.