11) thulium-167 has a half-life of 9.0 days. if the initial amount of thulium is 50.0 grams. how many grams are left after 36.0 days?

Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?

What are the major types of a chemical compound

Calculate the mass of carbon in 97.0 g of sucrose c12h22o11