When a student adds 30.0mL of 1.00M HCl to 0.56g of powdered Fe, a reaction occurs according to the equation above. When the reaction is complete at 273K and 1.0 atm, which of the following is true? A) HCl is in excess, and 0.100 mol of HCl remains unreacted
B) HCl is in excess, and 0.020 mol of HCl remains unreacted
C) 0.015 mol of FeCl2 has been produced
D) 0.22L of H2 has been produced