5.88. military explosives explosives called amatols are mixtures of ammonium nitrate and tnt introduced during world war i when tnt was in short supply. the mixtures can provide 30% more explosive power than tnt alone. above 300°c, ammonium nitrate decomposes to n, o, and h, o. write a balanced chemical reaction describing the decomposition of ammonium nitrate, and determine the standard enthalpy of reaction by using the appropriate standard enthalpies of formation from appendix 4.