How many hydrogen atoms are in 2.30 mol of ammonium sulfide

Which of these statements explains the difference between nuclear binding energy and the strong nuclear force ?

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.