Es posible formar enlaces con electrones de las capas más cercana al núcleo ? por qué?

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

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.

Which of these expressions are correct variations of the combined gas law? p1v1t2 = p2v2t1 both