Use the reaction equation and bond energies to answer the question 2H20 - 2H2 + O2
1
H-O: 467 kJ/mol
H-H: 432 kJ/mol
O=0.495 kJ/mol
What is the total energy of the reaction? Is this an endothermic or exothermic reaction?
(1 point)
O 509 kJ/mol, endothermic
O 509 kJ/mol, exothermic
O-509 kJ/mol, endothermic
-509 kJ/mol, exothermic

The correct answer is b.hoped i you

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