Is the word explodiu the same in Brazilian and European Portuguese?

Yes

The word "explodiu" is identical in spelling, meaning, and grammar in both Brazilian and Continental Portuguese. The only difference is in pronunciation. In Brazilian Portuguese, vowels (especially the "i" in the suffix "-iu") tend to be more open and clearly articulated. In Continental Portuguese, the pronunciation is more "stress-timed," meaning unstressed vowels are often reduced or shortened, resulting in a more clipped sound.

Brazilian Portuguese Example Sentences

1. O balão explodiu de repente. (The balloon exploded suddenly.)
2. O motor do carro explodiu na estrada. (The car engine exploded on the road.)
3. Ele explodiu de raiva com o atraso. (He exploded with rage because of the delay.)
4. A bomba explodiu no meio da praça. (The bomb exploded in the middle of the square.)
5. A internet explodiu com a notícia. (The internet exploded with the news.)

Continental Portuguese Example Sentences

1. O balão rebentou de repente. (The balloon popped suddenly.)
2. O motor do carro explodiu na estrada. (The car engine exploded on the road.)
3. Ele explodiu de raiva com o atraso. (He exploded with rage because of the delay.)
4. A bomba explodiu no meio da praça. (The bomb exploded in the middle of the square.)
5. O pneu rebentou na autoestrada. (The tire burst on the highway.)