Which physical property causes cork to float on top of water?

When would a bouncy ball have the most potential energy

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-