Less common causes of heel pain should be considered before a treatment regimen for plantar fasciitis is undertaken. These include sciatica, tarsal tunnel syndrome, entrapment of the lateral plantar nerve, rupture of the plantar fascia, calcaneal stress fracture and calcaneal apophysitis (Sever's disease).
A chemical reaction happens when one or more chemicals are changed into one or more other chemicals. Examples: 1  iron and oxygen combining to make rust. 2  vinegar and baking soda combining to make sodium acetate, carbon dioxide and water.
Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and breaking of chemical bonds between atoms, with no change to the nuclei (no change to the elements present), and can often be described by a chemical equation.hemical reactions happen at a characteristic reaction rate at a given temperature and chemical concentration.