Given the fact that the molecular weight of water vapor is less than that of dry air, what affect does increasing humidity have on the density of the atmosphere? Does this run counter to what your intuition tells you?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

What is the common name for the compound shown here? enter the common name of the compound shown?

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?