SOMEONE PLEASE HELP I SUCK AT CHEMISTRY LET ME KNOW IF YOU NEED MORE INFO QUESTION IS IN THE PICTURE

In the analysis of hair and fiber samples, which does a compound comparison microscope allow for that a conventional compound microscope does not? a. simultaneous observation b. polarization c. fluorescence d. higher magnification

This flow chart shows the amount of energy that is emitted by each type of light. ultraviolet > blue light > yellow light > red light (maximum energy) (minimum energy) in an experiment, shining which type of light on a strip of metal would be least likely to produce the photoelectric effect? ultraviolet light dim blue light bright red light bright yellow light

Why does his teacher ask him to balance the equation by including the correct coefficient