What would be the mass of 7.20 moles of fluorine gas

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

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.

Connect the whole numbers on the periodic table to indicate what they represent?