Consider the unbalanced equation for th decomposition of potassium chlorate: KClO3(s)-->KCl(s)+O2(g). a) write a balanced equation for the reation. b) When 46.0 g of KClO3 is heated, 12.1 g of O2 is formed. How many grams of KCl is also formed? c) What is the percent yield of O2 for the reaction