What is Hydrogenation?
'''Hydrogenation''' is the [[process]] of adding [[hydrogen]] to [[organic chemistry|organic compound]]s. It is done to [[alkene]]s. [[Vegetable oil|Vegetable oils]] have alkenes in them. Alkenes are liquid and spoil easily. People making [[shortening]] add hydrogen to the alkene, turning it into an [[alkane]]. The alkanes are more solid and stable. A [[catalyst]] is used to react the hydrogen with the oil. This makes [[trans fat]]s, though. [[Margarine]] is an example of a hydrogenated spread. Other things can be hydrogenated, too. Hot nitrogen is reacted with hydrogen under high [[pressure]] with a catalyst, usually [[nickel]] to make [[ammonia]] gas. {{Alkenes}} {{chem-stub}} [[Category:Chemical reactions]]