. A compound X, containing C, H, and O was found to have a relative molar mass of 6o whilst 20.0g of X contained 8.0g of C and 1.33g of H. Calculate the empirical formula

of compound X, and hence determine its molecule formula. show calculation

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

The twister and runaway train are two coasters at the same amusement park. both coasters start at the same height. the coaster for the twister is twice the mass of the coaster for the runaway train. which roller coaster has greater gravitational potential energy at the start of the ride?

Select the correct location on the image identify the element that humans need to breathe. 2015 er r ights reserved