3. How many moles of H20 are in 15.2 grams of pure ice?

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

How much heat is released upon converting one mole of steam (18.0 g) from 100.0 ∘c to water at 25.0 ∘c? show work and constants, trying to figure out how it works. only given the heat capacity for steam and water so try to only use that

The pressure inside a hydrogen-filled container was 2.10 atm at 21 ? c. what would the pressure be if the container was heated to 92 ? c ?