Which compound is the strongest acid? pls help

When considering the claim that eating well to reduce stress, what advice might you give a friend who appears to be stressed about an upcoming exam, but chooses to have chips and soda for lunch everyday?

Which is the lipid molecule that controls what types of molecules can pass though?

Which short-term goal might prompt someone to seek for mental and emotional challenges? saving for retirement buying a house in 10 years reducing conflict with family owning a company eventually