Answer:
2.5 mole O2 should react (2 * 2.5) = 5.0 mole H2 but there is 6.0 mole H2. H2 remain in excess. O2 is the limiting reactant. mole of H2O formed = 2 * 2.5 = 5.0 mole.
Same here no one answers my questionssssss
He will most likely find that the sand has sunken to the bottom because the molecules in sand are to powerful to break apart and disslove.
This process is called evaporation as I believe
