9. Scandium forms the ion Sc. How many bromite ions could bond with Sc, and what would be the chemical formula?
A. 3 bromite ions, Sc(Bron)
B, 2 bromite ions, Sc (BrO2)2
C. 3 bromite ions, Sc(Bro.)
D. 2 bromite ions, Sc(Bros)

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.