1. For an overall gain in the net result see exergonic reaction. 2. Exergonic reactions are energy-releasing reactions and are generally catabolic.3. An example of an exergonic reaction is cellular respiration. 4. Metabolism is the total of all catabolic, exergonic , anabolic, endergonic reactions. 5. A chemical reaction is also exergonic when spontaneous. 6. The formation of xenon tetrafluoride, like the other xenon fluorides, is exergonic . 7. This is reflected in a negative ? " G ", and the reaction is called exergonic . 8. The peptide is typically attached by a very exergonic chemical reaction, thus forming a very stable antimicrobial surface. 9. In exergonic reactions the ? " G " is negative and in endergonic reactions the ?G is positive: 10. Few exergonic reactions exist that liberate hydrogen like the chemical decomposition of formic acid to hydrogen and carbon dioxide . endergonic.