Compatibility summary
You will need a travel adapter in Brazil; plug types used there differ from Canada.
Plug comparison
Canada plug types: A B
Brazil plug types: C N
There is no common plug type between Canada (A B) and Brazil (C N). You need a travel adapter.
Voltage comparison
Canada: 120V, 60Hz
Brazil: 127V, 60Hz
Voltage difference is within a range many devices tolerate; check your appliance label.