Using the information (valid at 25 ºC): ΔfHº(NO2,g) = 33.18 kJ / mol ΔfHº(N2O4,g) = 9.16 kJ / mol and assuming that the molar heat capacities at constant pressure Cp, m(NO2,g) = 37.20 J / (K mol) Cp, m(N2O4,g) = 77.28 J / (K mol) are independent of temperature, calculate the standard enthalpy of the reaction 2 NO2(g) → N2O4(g) at 100 ºC and 1.0 bar.

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

Rank substituents in order of their priority when assigning the e or z label to an alkene. i, ch2i , h, ch2ch2cl, f