Calculate the enthalpy of the reaction below (DHrxn, in kJ) using the bond energies provided.  2H2 (g) + O2 (g) --> 2H2O (g)

If the bond energy for the N−HN−H bond is 391 kJ/molkJ/mol, how much energy is released when 1 molmol ammonia gas is formed?

References kJ Use the References to access important values if needed for this question. Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: CH₂OH(g) + HI(g)-CH31(g) + H₂O(g)

we would predict that the imaginary ionic compound XF would have a (higher /lower) lattice energy than YyF2 because

Draw the correct Lewis structures to determine the bonding structure. Calculate the enthalpy change (ΔH(rxn)) Calculate reactant energy – product energy for your final answer. 2H2O2 (g) _ 2H2O (g) + O2 (g)

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Use average bond enthalpies (linked above) to calculate the enthalpy change for the following gas-phase reaction. Br2(g)   +  Cl2(g)     2BrCl(g)     To analyze the reaction, first draw (on paper) Lewis structures for all reactant and product molecules.

PCB, CO, HCO3, H&PO4 2.Calculate the enthalpy change for the reaction H2+ CH20 CH3OH given the following bond enthalpies: C-H=413 kJ/m, C-C = 348 kJ/m, C-0 = 358 kJ/m, C-0=743 kJ/m, H-H=436 kJ/m, O-H=463 kJ/m %3D %3D 11 %3D %3D

True or False: This reaction is endothermic because more energy is needed to break up the reactants versus the amount given off by the products. Use the reaction and bond information to answer the question. H-H +0=C = 0 - H-C = O | O-H H2 + CO, → CH,O. Reactant bond energies: H-H is 432 kJ/mol, C=O is 799 kJ/mol Product bond energies: C-H is 413 kJ/mol, C=O is 745 kJ/mol, C-O is 358 kJ/mol, O-H is 467 kJ/mol ○ True ○ False 1

2. Use the table below to estimate AH for the reaction NO + O3 → NO2 + O2. Does this reaction consume or produce heat? Single Bond Energies (kJ/mol of bonds) н сN oS F C Br I Н 436 C 413 346 N 391 305 163 O 463 358 201 146 S 347 272 226 - F 565 485 283 190 284 155 Cl 432 339 192 218 255 253 242 Br 366 285 201 217 249 216 193 - I 299 213 201 278 208 175 151 - - Multiple Bond Energies (kJ/mol of bonds) C=C 602 C=N 615 C=O 799 C=C 835 CEN 887 C=O 1072 N=N 418 N=O 607 N=N 945 O=O 498