Calculate the free energy δg∘ of the reaction. express your answer with the appropriate units. view available hint(s) δg∘δ g ∘ = -849 kj submitprevious answers correct significant figures feedback: your answer −849.2kj was either rounded differently or used a different number of significant figures than required for this part. part c what can be said about the spontaneity of this reaction? view available hint(s)