Why does wood catch fire, but metal doesn’t?

Imagine yourself sitting in front of a campfire. A smell of smoke wafts through the air as a pot of soup simmers over an open flame. As you watch the flashing orange tongues, you may wonder: Why are the wooden logs burning, but the metal pot isn’t?

The reason some things catch fire and others don’t boils down to their chemical bonds and the energy it would take to change or break those bonds.

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