Which set of symbols represents atoms with valence electrons in the same electron shell?
(1) ba, br, bi (3) o, s, te(2) sr, sn, i (4) mn, hg, cu

What are fructose and glucose an example of?

The grooves or folds of the brain are called

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.