Potassium chlorate (KClO3) decomposes into potassium chloride and oxygen upon heating. What is the theoretical yield of oxygen when 75.0 g of KClO3 decomposes? If 22.7 g of oxygen is actually obtained when 75.0 g of KClO3 is heated, what is the percent yield of this reaction? 2 KClO3 → 2 KCl + 3 O2 moles of KClO3 theoretical moles of O2 produced theoretical grams of O2 produced percent yield

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.