<span>The theoretical yield for a reaction is calculated based on the limiting reagent. This allows researchers to determine how much product can actually be formed based on the reagents present at the beginning of the reaction.</span>
<span>The actual yield will never be 100 percent due to limitations.</span>
Stoichiometry measures any quantitative relationships and is used to determine the amount of products or reactants that are produced in a given reaction.
(Is that how you spell Stoichiometry)
57 - True
58 - True
59 - True
60 - Fe and O
61 - Sr and F
62 - <span>both ionic and covalent bonds
Hope this helps!</span>