1. Order in which steps must be done to simplify an expression. This follows rules of each set of operation,
c. Order of operation D. Math Operation
B. GEMDAS
A) PEMDAS​

(PE) (MD) (AS)

applies to all if you must multiply or divide at the same time do the left side first

16.80 times .20= 3.36

step-by-step explanation:

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.