Calculate the number of moles of HI that are at equilibrium with 1.25 mol of H2and 1.25 mol of I2in a 5.00−Lflask at 448 °C. H2+ I2⇌ 2HI Kc= 50.2 at 448 °C

adding or remove a gaseous reactant or product changes the concentrations. if the concentration of reactant or product is increased, the system will shift away from the side in which concentration was increased (i.e. if the concentration of reactants is increased, the system will shift toward the products. if more products are added, the system will shift to form more reactants). conversely, if the concentration of reactant or product is decreased, the system will shift toward the side in which concentration was decreased (i.e. if reactants are removed, the system will shift to form more reactants. if the concentration of products is decreased, the equilibrium will shift toward the products).

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c- cold periods in earth's history during which glaciers covered much of the surface.

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