Acetylene, C2H2, burns completely in oxygen, O2, to produce carbon dioxide, CO2, and water, H2O, according to: 2C2H2 + 5O2 → 4CO2 + 2H2O If 8.3 mol of C2H2 are completely burned in excess oxygen, the number of moles of CO2 produced are:

Which statement is actually 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.