Write Lewis structures for the species in Exercise 97 that involve minimum formal charges.
Ch. 6 Enthalpy For a bond to break, e- in the bonding MO must receive energy from its surroundings (endothermic process), through kinetic energy transfer. (H) enthalpy is used to measure this exchange of energy Energy required to break covalent bonds via hemolytic cleavage is called the bond dissociation energy Most reactions involve breaking several bonds, and forming several new bonds. Delta H naught indicates whether the system decreased in energy (negative) or increased in energy (positive). Exothermic: delta H = negative values, so heat/energy is given off by “system” to the surroundings Endothermic: delta H = positive values, so heat/energy is received (absorbed) by the system, from its su