What happens when oxygen reacts with sodium? a. electrons become delocalized among the atoms. b. electrons move form the sodium atoms to the oxygen atoms. c. electrons move from the oxygen atoms to the sodium atoms. d. electrons are shared between the sodium atoms and the oxygen atoms.

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Part 1: a magnetic levitation or maglev train rides rails without touching them. explain how this works using your data. include the appropriate magnet drawing in your answer. part 2: two objects are near a bar magnet. one is about 1 cm away, while the other is 6 cm away. compare and contrast the magnetic force that affects each object. use your data to answer the question