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). At the anode, the Hy loses electrons and becomes H+. At the cathode, H+ ions combine with electrons and O2 to produce H20. Electrons (e) flow through the wire to produce electricity. Fuel (H) is pumped into the cell. H+ flows through the electrolyte to the cathode.​

Silica, sio2, is formed on silicon as an electrically insulating layer for microelectronic devices. silica is formed when silicon is exposed to o2 gas at an elevated temperature. at 900˚c, it takes 90 minutes for the oxygen to diffuse from the surface to form a 0.06 micron (0.06 x 10-6 m) thick layer of sio2 on

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.