An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 ev. what is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1?

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

The fact that the total amount of energy in a system remains constant is a(n)