The u. s. navy has a system for communicating with submerged submarines. the system uses radio waves with a frequency of 76s^-1. what is the wavelength of the radiation in meters? in miles?

Which best describes why nh4+ can form an ionic bond with cl-?

What element breaks down into yttrium-90?

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)