II. Перепишите следующие предложения, содержащие различные формы сопоставленья и переведите их

II. Перепишите последующие предложения, содержащие различные формы сопоставления и переведите их на российский язык.
1. The most striking contrasts between organic and inorganic chemistry is to be found in the instantaneous character of most inorganic reactions.
2. The lightest of the positive ray particles proves to be formed when hydrogen is the residual gas in the tube.
3. There are only a few kinds of particles with a mass less than that of an electron, the most familiar of them being the proton, the quantum of light, whose mass is thought to be exactly zero.