One-half mole of a substance is excited and electrons shift from a ground state to an excited state. If the energy absorbed by the substance is 137.86 kJ and the ground state is n = 2, what is the excited state the electrons have been promoted into

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

The diagrams to the right show the distribution and arrangement of gas particles in two different containers. according to kinetic-molecular theory, which of the following statements is true? check all that apply. if the temperatures of both containers are equal, container a has greater pressure than container b. if the volume of container a decreased, its pressure would decrease. if the pressure in both containers is equal, container a has a lower temperature than container b.