The density of ethanol is 0.789g/ml at 20°c. find the mass of a sample of ethanol that has a volume of 150.0 ml at this temperature.

How many moles of oxygen react with 12 moles of aluminum

Which factor is likely to impact the possible number of compounds ?

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.