Given the standard enthalpies of formation for the following substances, determine
the reaction enthalpy for the following reaction
2NH4(8) + 2NO3(8) - 3N (8) + 4H2O(g) DM?
Substance
N Hals)
NO (8)
Hols)
DHi in kJ/mol
+95.4
+331
241.8

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.