According to Dalton, the pressure exerted by a gas inside a container is proportional to the number of molecules of that gas. If 4.00 x 10^23 molecules of N2 and 2.00 x 10^23 molecules of O2 are mixed in a container they exert a total pressure of 1686 torr. What portion of that pressure (in torr units) is exerted by the N2?

After cloud droplets form, what must happen to them for precipitation to occur?

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer