why is it necessary to find the percent yield of a reaction?
a.
to determine the efficiency of the reaction
ob. to determine the amount of reactants in the reaction
c.
to determine the amount of products in the reaction
d.
to determine the limiting reactant of the reaction

13) a 14) a15) b16) i don't know sorry17) a (maybe)

Molarity is moles of solute over liters of solution. idk if that is what you are talking about, but you can convert moles of solute to grams of solute using dimensional analyzes by using molar mass found on the periodic table.

13 protons and 14 neutrons.  this also means that the amount of electrons also is 13 because electrons have the same amount as protons..the atomic number means the amount of protons (which effectively tells you the electrons) the atomic mass, tells you the amount of protons and neutrons in the nucleus.hope this .