Is the 2.55 mol of CaC2 relevant??

Context: How many atoms of carbon are in a container that has 0.450 mol of CO2 and 2.55 mol of CaC2?

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

What does the symbol (–hfus) indicate in a phase change?

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