What types of atoms release nuclear radiation

Select the atomic models that belong to the same element

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

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.