It takes 437 kJ/mol to eject electrons from a copper metal surface (remember this is for 1 mol of Cu). What is the maximum wavelength of light that can be used to eject electrons from a copper ATOM?

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).

explanation:

since electrons are negative the answer is neagtaive