Identify the spectator ions for the reaction that occurs when aqueous solutions of lithium sulfide and copper(II) nitrate are mixed to form the insoluble copper(II) sulfide. a. Li+ and NO3- b. No spectator ions are present. c. Li+ and Cu2+ S2- and d. Cu2+ Cu2+ and NO3-

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j

Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.