Question

Which half-reaction would likely occur at the anode of a fuel cell that uses hydrogen as a fuel?

hydrogen atoms becoming hydrogen ions
hydrogen ions joining with oxygen to form water
hydrogen ions becoming hydrogen atoms
hydrogen atoms joining with oxygen to form water

Answer 1

the answer is a. hydrogen atoms becoming hydrogen ions

Answer 2

Thr half reaction that would occur at the anode side of a fuel cell where hydrogen is used would be hydrogen atoms becoming hydrogen ions. Also, releasing 4 electrons. In  the cathode side, it would be the formation of water molecules from oxygen and hydrogen ions.