2mg(s) + o2(g) → 2 mgo(s) δh = -1204 kj
determine which statement is true regarding the reaction above.
a) the reaction is endothermic; the products have a lower total bond energy than the reactants.
b) the reaction is endothermic; the products have a higher total bond energy than the reactants.
c) the reaction is exothermic; the products have a lower total bond energy than the reactants.
d) the reaction is exothermic; the products have a higher total bond energy than the reactants.