What is the mole ratio for Potassium and Sodium in the balanced equation? 2 Na + K2S → 2K + Na2S

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?

Draw two cyclic constitutional isomers of cis-1

How many grams of mgbr2 are needed to produce 75g or metal?