* Bond energy in CO2 is equal to 799 kJ/mol. ▾ Part B Bond Bond energy (kJ/mol) Bond Bond energy (kJ/mol) C-C C-H 414 C=C C=C 837 C-O 360 N-H 389 O-H 464 C=O 736* H-H N=N N=N 0=0 Use bond energies to calculate the enthalpy of combustion of methanol in kJ/mol. 347 611 436 418 946 498

Please answer both questions as they are calculated together but just a heads up they are different questions. Thank you for helping me

Use the data given below to construct a Born-Haber cycle to determine the lattice energy of CaO. A H°(kJ) Ca(s) → Ca(g) 193 Ca(g) → Cat (g) + e 590 Cat (g) → Ca2+(g) + e 1010 20(g) → O2(g) -498 O(g) + e O(g) -141 O(g) + e → O2(g) 878 Ca(s) + O2(g) → CaO(s) -> -635 O-2667 kJ O-3414 kJ O +1397 kJ +3028 kJ O-2144 kJ

TABLE 8.6 Average Bond Dissociation Energies and Bond Lengths for Some Common Covalent Bonds Energy Length (kl/mol) (pm) Energy Length Bond (kJ/mol) (pm) H-H H-F H-C H-Br H-I 75 92 127 141 161 413 109 485 135 339 177 276 194 240 214 347 154 614 134 839 120 305 143 615 138 891 116 *C-O bond energy in CO₂ is 799 kJ/mol. -H C-Br 432 565 427 363 295 Bond N-H N-F N-C N-Br N-N N=N N=N 0-H 0-F 0-Cl 0-1 0-0 0-0 391 272 200 243 160 418 941 467 190 203 234 146 495 358 745* 1072 101 136 175 189 145 125 110 96 142 172 206 148 121 143 120 113 Bond F-F F-Cl F-Br F-I CI-CI Cl-Br CI-I Br-Br Br-I H S-H S-F S-CL S-Br S-S H Bond Breaking Bond Making CH4 (g) + 202 (g) - --> CO2 (g) + 2H2O (g) H T 0 =0 O=C=0 H-C-H a Energy Length (kJ/mol) (pm) 154 253 237 273 239 218 208 193 Use bond enthalpy values to calculate the enthalpy change for the following reaction. Then, label if the reaction is endothermic or exothermic. 175 149 363 327 253 218 226 142 165 176 191 199 214 232 228 247 267 134 156 207 216 205

Do all threes please neat and clean correctly

Identify the compound with the highest magnitude of lattice energy.   NaF   KF   LiF   CsF

The following Lewis representation depicts a reaction between a group metal and a group nonmetal. X: 3- X: 3 x2* + 2 + X: In this representation, each metal atom loses electron(s) and each nonmetal atom gains electron(s). The bonds that form in the product are

Given the bond enthalpy information below, calculate the Δ H of the following hypothetical reaction:                      A2 + 2BC  --->   2AB + C2 A-A  233.4 B-B  131.4 B-C  188.4 C-A  184.9 B-A  151.4 C-C 217.8 All of the above bond enthalpy values are in kJ/mole.  Report your answer in kJ/mole units.

Use bond energies to estimate the energy change of this reaction. C3H8 + 5O2 → 3CO2 + 4H2O Show all work on your answer sheet. Bond Energies of Covalent Bonds Bond Energy (kJ/mol)   Bond   Energy (kJ/mol)   C–C 348                      N–N 163                       C=C 611                    N=N  418 C≡C 837                    N≡N  946 C–O 351                    N–H  389 C=O 799                    O–O  146 C–Cl 328                    O=O  498 C–H 414                    O–H  463 F–F 159                    S–H  339 H–Cl 431                    S=O  523 H–F 569                    Si–H  293 H–H 436                    Si–O  368

Draw the Lewis structure for the FCF molecule: both F atoms are bonded to the C atom. What is the bonding pattern and the shape around the C atom? Select one: A. There are two resonance structures: F–C=F and F=C–F. The shape around the C atom is bent. B. There are two resonance structures: F–C=F and F=C–F. The shape around the C atom is linear. C. Two single bonds: F–C–F. The shape around the C atom is bent. D. Two double bonds: F=C=F. The shape around the C atom is linear.