Write a balanced chemical equation for the reaction of solid titanium (iv) oxide with hydrogen gas to form solid titanium (ii) oxide and liquid water. Express your answer as a chemical equation including phases.

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