This is science but for some reason I’m kinda stuck on this question so if anybody wanna help me that would be great

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

  the mississippians were considered to be  horticulturalists, which means they were

Explain what happens at the saturation point when adding salt to water at room temperature.