Insert numbers next to these steps to show the
correct order of events for a fuel cell to work. (1
first step, 5 - last step).
electric current
1000
fuel in
air in
at the anode, the hy loses electrons and
becomes h.
h2o
i
at the cathode, h+ ions combine with
electrons and oz to produce h20.
i
electrons (e) flow through the wire to
produce electricity.
excess
fuel
unused
gases
h20 out
fuel (h2) is pumped into the cell.
anode
cathode
electrolyte
ht flows through the electrolyte to the
cathode.
) intro