Answer:
stoichiometry
Step-by-step explanation:
The study of quantitative relationships between the amounts of reactants used and the amounts of products formed by a chemical reaction is called stoichiometry.
Stoichiometry is a branch of chemistry that deals with the quantitative relationships between the reactants and products in a chemical reaction. It is based on the law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction.
The study of stoichiometry is important because it allows us to predict how much of a product will be formed in a chemical reaction. This information can be used to design and scale up chemical reactions and to determine the efficiency of a chemical process.