Based on the law of superposition, which layer of sedimentary rock is the oldest?

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

Calculate the number of moles of ethane in 100 grams

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.