What is the smallest division on this balance? 1g 0.1g 0.01g 0.001g

How many moles of gas are present if p=11 atm, v=12l, t=185k?

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?

How many moles of bromine are needed to produce 3.23 moles of potassium bromide