If a laser light is compose of photons each with an energy of 4.58 × 10−19 j, what is the photon energy of this light in units of nanometers, nm? report your answer with correct significant figures and correct units.

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car