Lkirjnnfcxd28661 Lkirjnnfcxd28661 21-04-2024 Chemistry Answered For the reaction 2H₂+O₂ → 2H₂O, if 30.0 g of H₂ is reacted with 20.0 g of O₂, what mass of the excess reagent is left over? you must show your work to get credit.