B. which of the following molecules, having a bond with chlorine, contains an ionic bond? chlorine gas, calcuim chloride, carbon tetrachloride, chlorate ion, chloroform

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