Describe the redox reaction. check all that apply.
aluminum atoms transfer electrons to chlorine atoms.
zinc is reduced.
zinc is the reducing agent.
the oxidation number of chlorine does not change.
aluminum is oxidized.

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