Calcium carbide (cac2) reacts with water to produce acetylene (c2h2): cac2 (s) 2h2o (g) → ca(oh)2 (s) c2h2 (g) production of 6.5 g of c2h2 requires consumption of g of h2o.

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.