What is the wavelength of the matter wave associated with an electron (me= 9.1 x 10-31 kg) moving with a speed of 2.5 x 107 m/s? a. 2.41*10^-34b.1.51*10^-56c.2.9*10^-1 1d.1.82 *10^4

How many moles in .5g of sodium bromide?

Robert leaves a chocolate bar in his car while attending school all day. when he goes to his car in the afternoon, the bat has changed into gooey liquid. what happened to the chocolate bar

What lessons does the history and study of the periodic table offer to other fields of science, and the pursuit science more generally