How many Joules of energy is required to change 10 gram of ice at -2 C to water at 20 C? Ice has a specific heat of 2 J/g C 440 J
10,140 J
880 J
66,000 J

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