If you have 3.5 L of He to blow up balloons... at STP... a) How many moles of He do you have?

b) How many grams of He do you have?

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Type the letter that represents the correct location for each particle type below.

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.