What is the empirical formula of a compound containing carbon, hydrogen, and oxygen in the ratio 14: 42: 84

What must occur for air masses to form fronts

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.