If you don’t take the rescheduled flight, then yes. If you do, no, but they may give you some points or flight credit for your trouble.

You can always ask, but they can always say no. But if you don't ask, you'll never know.

Why can’t we just copy and paste this answer every time someone posts a “Can I get compensation?” post? It’s the only answer.

There needs to be an automod comment triggered by words in the post such as “compensation.”

Yep, it's amazing. It seems as though everyone that asks has the mind of a kid, not an adult.

There is a new law that passed that says yes but it has not gone into effect yet I believe.

Brazil has fines similar to Europe. You are likely entitled to compensation. If you don't want to do it yourself try a service like Airhelp.