instruction:
Translate the given Spanish text to English
question:
The phosphonylation may be performed prior to or after polymerization.
answer:
La fosfonilacion puede realizarse antes o despues de la polimerizacion.


question:
Finally, the invention relates to methods of identifying the plants and seeds of the invention.
answer:
Finalmente, la invención se refiere a métodos para identificar las plantas y semillas de la invención.


question:
A process for the alkylation of aliphatic hydrocarbons with olefins catalyzed by a silica-based material, characterised in that the surface Si-OH groups of said silica are esterified with a fluoroalkylsulphonic acid of formula CF3(CF2)nSO3H, where n is a whole number between 0 and 11, said material having a Hammett acidity Ho</=-11.4.
answer:

Un procedimiento para alquilacion de hidrocarburos alifaticos con olefinas catalizas con un material a base de silica, caracterizado porque los grupos superficiales Si-OH de esa silica se esterifican con acido fluoroalquilsulfonico de la formula CF3(F2)nSO3H, en donde n es un numero entero entre 0 y 11, el material tiene un acidez Hammett Ho-11.4.