how many grams of HCI will react when you have 112.02 liters of H2 produced? this is a volume to mass stoichiometry problem. i will give brainlest to first answer just somebody please help me out id greatly appreciate it !!!

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium