Chemical Reactions: A chemical reaction is a process where the substances 8unbdergo a change in their chemical composition. The substances that enter the reaction are called reactants that are then ...

Chemical reactions make new chemicals. Atoms are rearranged during a chemical reaction, but the number of atoms does not change. Evidence of chemical reactions includes a large temperature change, ...

The continual growth of bioorthogonal chemical reactions in the past decade has offered an unprecedented opportunity for the study and manipulation of biological processes within living systems 1,2,3.

Allergies are over-reactions of the immune system in certain individuals to seemingly and generally harmless foreign proteins and substances. Allergies usually do not occur at the first exposure. When ...

Rheumatoid arthritis is associated with an atypical immune response called a type 3 hypersensitivity reaction. This reaction happens due to immune complexes in the body. It can be treated by ...

Our understanding of complex chemical mechanisms, such as those that occur in combustion and planetary atmospheres, is premised on the types of reactions that are presumed to take place. Such complex ...