1. Compare the volumes of the two gasses produced by electrolysis. What does their ratio tell you about the ratio of atoms that make up water 2.

frequency or wavelenth of em radiation in a vacuum

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.