Burning coal only Exploding fireworks only Both burning coal and exploding fireworks Neither burning coal nor exploding fireworks
I gave my students this multiple choice question: Some chemical reactions absorbed energy, while others release energy. Of the chemical reactions in the burning coal and exploding fireworks, which will release energy?

Only one answer is correct among these 4 choices:
- Burning coal only
- Exploding fireworks only
- Both burning coal and exploding fireworks
- Neither burning coal nor exploding fireworks

Could you tell me which one is correct?

Both burning coal and exploding fireworks