I think it is ok
Anh is for people who are male and older than you
Chị is for people who are female and olde than you
Em is for people who are male or female and younger than you
But politically, you can call "anh" for men who are younger than you, and "chị" for women who are younger than you
And this sentence: địa chỉ của anh là gì (male)
Địa chỉ của chị là gì ( female)
What is your address?
Your is của anh or của chị, ofc no need to have của, but politically you can say it :)
Good luck for you