Questions & Answers about Dov'è la chiave? È qua!
Why is it la chiave instead of il chiave if it ends in -e?
What does the apostrophe in Dov'è stand for?
What is the difference between qua and qui?
Both qua and qui mean "here" (close to the speaker) and are generally interchangeable. You will hear Italians use both all the time, though qua can sometimes imply a slightly wider or less specific area around the speaker.
Since this lesson is about quello (that), how would I say "Where is that key?"
Why is the second sentence just without a word for "it"?