so, how do I make CO2=C+O2?

Question

20 years ago a science teacher I didn't like or respect did an experiment in class where he separated H2O into H and O.....
...so somewhere in a science book I didnt pay attentoin to is a small table size version of a test tube contrapctoin that will convert CO2 into its separate components.. one of you just has to tell me where I can find it.....or atleast ask a friend... and have them ask a friend....

Answer 1

You need to add a whole lot of energy to the CO2 — the same amount that you'd get from a combustion reaction of carbon, plus some to account for the inefficiency of real-world processes.

That's why CO2 is a PRODUCT of many combustion reactions. Cracking it back to carbon and oxygen is possible but pointless. A feasible approach, for fixed-location power plants for example, is to sequester the carbon dioxide underground (but of course you can't do that in a car).

Answer 2

try photosynthesis, most any green vegetative matter will do it although it keeps the carbon to make its sugar (combined with water).