Use dimensional analysis: convert: 0.36km/sec to m/min 2.6l to cm^3 9cm to mm 7.6mm^3 to cm^3

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

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?

Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water