chemical cells and batteries

a battery is made up of two or more cells joined together to increase voltage avaliable.

hydrogen fuel cell:

hydrogen is the fuel, potassium hydroxide is the electrolyte and the water is the waste product

hydrogen fuel cells are less polluting to dispose of than rechargeable batteries

when two metals are dipped in a salt solution and joined by wire the more reactive metal donates electrons to the less reactive metal which forms a simple electrical cell

the greater the difference in reactivity between the two metals used the higher the voltage produced.

the greater the voltage of…