Curious Carl and his lab partner were conducting a variety of experiments to produce gases: hydrogen, oxygen, and carbon dioxide. In one experiment, they added a piece of magnesium ribbon to 10 milliliters of hydrochloric acid. They observed bubbles being produced and did a variety of tests to identify the escaping gas; it proved to be hydrogen The reaction is represented by the following equation: Mg + 2HCl → MgCl2 + H2(g) Assuming STP, how many moles of hydrogen gas did Carl and his partner collect if they collected 5.6L? A) 0.250 moles B) 2.78 moles C) 5.60 moles Eliminate D) 11.2 moles