(i dontknow what the answer is some1 help, NO LINKS) Hydrogen bromide breaks down into diatomic hydrogen and bromine in the reaction shown.

2HBr → H₂ + Br₂

The energy of the reactant is 732 kJ/mol, and the energy of the products is 630 kJ/mol.

What is the total energy of the reaction? Is this reaction endothermic or exothermic?

–102 kJ/mol, endothermic

–102 kJ/mol, exothermic

102 kJ/mol, endothermic

102 kJ/mol, exothermic