Question

To burn a piece of paper, why must the paper touch the flame?

The products contain more energy than the reactants.

The flame provides energy for bond formation in the piece of paper.

The flame provides the energy needed to start breaking bonds in the paper.

Answer 1

I believe #2 Hope this helps
Sorry if you get it wrong :/

Answer 2

To burn a piece of paper, why must the paper touch the flame?



The flame provides energy for bond formation in the piece of paper.