Reactivity (chemistry)
Reactivity in chemistry refers to
the chemical reactions of a single substance,
the chemical reactions of two or more substances that interact with each other,
the systematic study of sets of reactions of these two kinds,
methodology that applies to the study of reactivity of chemicals of all kinds,
experimental methods that are used to observe these processes,
theories to predict and to account for these processes.
The chemical reactivity of a single substance (reactant) covers its behaviour in which it:
Decomposes
Forms new substances by addition of atoms from another reactant or reactants
Interacts with two or more other reactants to form two or more products
The chemical reactivity of a substance can refer to the variety of circumstances (conditions that include temperature, pressure, presence of catalysts) in which it reacts, in combination with the:
Variety of substances with which it reacts,
Equilibrium point of the reaction (i.e., the extent to which all of it reacts)