ZnSO4 (aq) + 2 KOH (aq) → Zn(OH)2 (s) + K2SO4 (aq)

What mass of carbon dioxide is produced from the complete combustion of 4.50×10−3 g of methane?

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?

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury