The definition of is the study of quantitative relationships between the amounts of reactants and products. a)chemical equations
b) stoichiometry
c) molar mass
d)coefficient

b) stoichiometry

Explanation:

Stoichiometry is the study of quantitative relationships between the amounts of reactants and products.

The word is coined from two Greek words; stoicheon  which means atom and metron which means measurement. It deals with chemical calculations based on the elementary particles of matter. Such calculations highlights the relationships between the composition or chemical reactions of matter and the mole.

Atomicity occurs to prevent updates of the database occurring only partially, which can cause greater problems than rejecting the whole series outright.some are monatomic, diatomic, triatomic etc because it shows the number of atoms. for example, monatomic means it contains only one atom.

Show and image of the mixtures or write them