4. Potassium and iodine combine to form potassium iodide. 2K+1, 2K1
a. This synthesis reaction begins with 150 grams of iodine and 45.6 grams of potassium, performa
stoichiometric calculation to determine which reactant is the limiting reactant and which react
the excess reactant?

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.