What compound did Lavoisier split

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Consider an insulating crystal, made up of layers of atoms. what form would you expect the temperature dependence of the phonon heat capacity to approach at extremely low temperatures if the interlayer coupling is i)very strong (rigid coupling), and ii) very weak. explain.

Which component of the earth’s atmosphere is decreased due to photosynthesis?