Purestock/Purestock/Getty Images. Hydroxycitric acid, which comes from the Garcinia cambogia fruit, is often sold as a weight-loss supplement. The fruit itself is used as a condiment in Southeast Asian dishes, such as curries.In purified supplement form, hydroxycitric acid may cause some side effects, so check with your doctor before adding it to your daily regimen.he fruit itself is used as a condiment in Southeast Asian dishes, such as curries. In purified supplement form, hydroxycitric acid may cause some side effects, so check with your doctor before adding it to your daily regimen.
Why is liquid nitrogen used to fast freeze food instead of liquid oxygen? There are two reasons. First, liquid nitrogen is colder than liquid oxygen and thus more effective at flash freezing.
That's not entirely accurate. Oxygen exists in nature as a diatomic molecule, as does Nitrogen; however, Oxygen has a lower bond order than Nitrogen (2 versus 3). This difference in bond order is due to the Lone Pair Bond Weakening Effect, which causes the triple bonded diatomic Nitrogen found in nature.