Asample of pure no2 is heated to 337 °c, at which temperature it partially dissociates according to the equation: 2 no2( g) ∆ 2 no( g) + o2( g) at equilibrium the density of the gas mixture is 0.520 g> l at 0.750 atm. calculate kc for the reaction.

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !

How many lone pairs of electrons are on the central atom of no3- and what is the molecular shape? one, trigonal planar zero, trigonal pyramidal zero, trigonal planar one, tetrahedral one, trigonal pyramidal

Why does ammonia, nh3, behave as a base when it reacts with an acid? z