HELP PLEASE.
how to find the number of neutrons of an element without a given R. A.M.
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Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

Air can be considered a mixture. which statement does not explain why?

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory