Answer:
See below
Explanation:
H2 S shows that each mole of H2S has two moles of H in it
so 10 moles of H2S would have 20 moles of H
Each mole is Avagadro's Number of atoms
20 moles * 6.022 x10^23 atoms/mole = 120.44 x 10^23 toms of H
H2S has one mole of S for each mole of H2S
there are then 10 moles of S
10 * 6.022 x 10^23 = 60.22 x 10^23 atoms of S
