An alkyne with molecular formula c4h6 was treated with ozone followed by water to produce a carboxylic acid and carbon dioxide. draw the expected product when the alkyne is treated with aqueous acid in the presence of mercuric sulfate.

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