Questions & Answers about Minusta kemia on vaikeaa.
Minusta is the elative case of minä (I). Literally it means “from me”.
In this sentence, minusta is an idiomatic way to express a personal opinion:
- Minusta kemia on vaikeaa.
→ From me / in my view, chemistry is difficult → I think chemistry is difficult.
So Finnish doesn’t use a verb like “think” here; instead it uses a case form of minä to mark whose opinion it is.