How many grams of hydrogen gas (H2) is produced if 10.0 mol of Zn are added to hydrochloric acid (HCl) according to the equation: Zn+2HCl→ZnCl2+H2 ?

a.) 20.2 g H2
b.) 10 moles H2
c.) 10.1 g H2
d.) 2.02 g H2