Use the reaction equation and bond energies to answer the question. 2H2O → 2H2 + O2 H-O: 467 kJ/mol H-H: 432 kJ/mol O=O: 495 kJ/mol What is the total energy of the reaction? Is this an endothermic or exothermic reaction? A. -509 kJ/mol, exothermic
b. -509 kJ/mol, endothermic
c. 509 kJ/mol, endothermic
d. 509 kJ/mol, expthermic

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.

i wish i could but this one is weird give me abc and i can solve it.