in a way that relates to the relationship between qualities of substances involved in a chemical reaction and the substances that are produced as a result of that chemical reaction

It forms stable, water-soluble, metal chelates stoichiometrically with virtually every metal in the periodic table. 它与元素周期表中几乎所有的金属在化学计量上形成稳定的、水溶性的金属螯合物。

Ethanol is usually made by stoichiometrically adding water to ethylene over an acid catalyst.