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Use what you know about electronegativity to predict the relative strength of the bond between CaO (Calcium Oxide) and NiO (Nickel II Oxide).


A reducing agent ( gains / loses ) electrons while an oxidizing agent ( gains / loses ) electrons


In an endothermic reaction the total bond energy in the reactants is (greater / less than)

the bond energy of the products so energy is (released / absorbed ) by the reaction


Balance the following decomposition reaction:


5__ Al2O3 → _5_Al + _3_O2