Use the 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, endothermic
B. 509 kJ/mol, endothermic
C. -509 kJ/mol, exothermic
D. 509 kJ/mol, exothermic

(Energy in Chemical Reaction Unit I test)

The  grandmother cell  is a hypothetical  neuronthat represents a complex but specific concept or object.[1]  it activates when a person "sees, hears, or otherwise sensibly discriminates"[2]  a specific entity, such as his or her grandmother. the term was in use at least as early as 1966 amongst staff and students in the department of experimental psychology, university of cambridge, england. a similar concept, that of the  gnostic neuron, was proposed two years later

Because it was a dramatically big guy

21 just playing hshsjsjshsgdhdhdhhd

Answer:

5.6⋅10−^19  j

do you need the explaination?