How many moles is equivalent to 8.23 x 10 exponet 22 molecules of nitrogen dioxide: no2 (mw. 46.01 g/mol)?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²