Обусловьте функции инфинитива в следующих предложениях:1. The process to convert substances

Обусловьте функции инфинитива в последующих предложениях:
1. The process to convert substances into other substances is very important.
2. There are many reasons to study chemistry.
3. То get salts you have to know some methods of preparing salts.
4. It is possible to get a good knowledge of chemistry by learning theoretical chemistry and carrying
out practical work.

Образец выполнения:
Тhe best way to determine the
amount of material in a sample
of a solid is to weight it on a balance.
to determine - инфинитив в функции определения
to weigh - инфинитив в функции составной доли глагольного сказуемого.