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as Wowik said, it depends on the context.
The figurative meaning, in informal speech may mean something like "it's not going to work"
For example
A: Może powiem mu, że pies zjadł moje zadanie...

You only use double "i", like in "chemii", when the noun ends with "-ia", eg. chemia, biologia.
I'm not sure what you meant saying "Słucham długiego tekstu", did you mean it like you're listening to...