How much of a 200.0 gram sample of 198Au is left over after 15.20 days if its half-life is 3.8 days? How many ½ Lives? Then answer the question.​

150.0 grams of asf3 were reacted with 180.0 g of ccl4 to produce ascl3 and ccl2f2. if the actual yield of ccl2f2 was 127 g, what is the percent yield?

The first element on the periodic table of elements is carbon. a. true b. false

Here’s one way to follow the scientific method. place the missing steps in the correct position in the process