Reversible reactions and equilibrium GapFill

 CatalyticEndothermicReversibleUndirectionalEquilibratedLe Chatelier reactions are reactions in which the products can react to form the reactants. They are represented using a  ←⇌«<»→. The ratio of reactants to products can be changed by changing the  scale of the reactioncatalystequipmentconditionstimesurface area. Reversible reactions that are exothermic in one direction are  staticendothermicneutraleven more exothermicunfeasiblejust as exothermic in the other direction. When the rate of the forward reaction and the rate of the backward reaction are equal, the reaction is  completeunstableslowingstoppedfastat dynamic equilibrium.

The Haber process is used to produce  soilcarbon dioxidedifferent acidspesticidesammoniafuel out of hydrogen (from  the airwaterfossil fuelspolymersnatural gascrude oil) and nitrogen (from  manurefossil fuelsthe oceancrude oilthe airfungi. These are passed over a catalyst made of  potassiumleadmagnesiumirongoldcalcium at a temperature of around  100020045050700850 °C, and at a pressure of around  200201050010050 atmospheres. The nitrogen and hydrogen react to form ammonia, which is liquefied to separate it out, and then leftover hydrogen and nitrogen are recycled into the system.