The "plastic" explosive C-4, often used in action movies, contains the molecule cyclotrimethylenetrinitramine, which is often called RDX (for Royal Demolition eXplosive):

Cyclotrimethylenetrinitramine (RDX)
(a) Complete the Lewis structure for the molecule by adding unshared electron pairs where they are needed.
(b) Does the Lewis structure you drew in part (a) have any resonance structures? If so how many
(c) The molecule causes an explosion by decomposing into CO (g), N2(g), and H2O(g).Write a balanced equation for the decomposition reaction.
(d) With reference to Table 8.4, which is the weakest type of bond in the molecule?
(e) Use average bond enthalpies to estimate the enthalpy change when 5.0 g of RDX decomposes.

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H N-O C-N TABLE 8.4 Average Bond Enthalpies (kJ/mol) Single Bonds C H с-с C -N с_o C F C CI C Br 391 163 201 272 O-Cl 203 200 243 463 146 190 413 348 293 358 485 328 276 240 259 N-H 155 O-O OF CI-F CI-CI 253 N-F N-CI N Br 242 O-I 234 237 218 193 S H Br-Cl 436 SF 567 431 366 299 339 327 253 218 266 S-Cl S Br S-S C S HF H-Cl H -Br H-I I-CI I-Br 208 175 151 Si-H Si Si Si-C Si-。 Si Cl 323 226 301 368 464 Multiple Bonds 614 839 615 891 799 1072 495 418 941 607 S O 523 418 C N C O