Did you ever ask yourself, why water boils at 100oC while ethyl alcohol evaporates at 78oC? why do you think we need to give higher temperature for
sulfuric acid (battery acid) to boil (higher than 300oC)? Write your answer in the

box below.

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.