Problem: When a small log completely burns in a campfire, the mass of the ash is much less than the mass of the log.What happens to the matter that composed the log?

FREE Expert Solution

We’re asked to determine what happens to the matter that composed the log that burns.


We know that when a small log completely burns in a campfire:

  • mass of the ash is much less than the mass of the log.


Recall that according to the Law of conservation of massmatter is not created or destroyed:


This means that:


mass of reactants = mass of product


mass unburned log + mass of oxygen, O2 (used to burn the log) = mass of ash 

reactants                                                             products

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Problem Details

When a small log completely burns in a campfire, the mass of the ash is much less than the mass of the log.

What happens to the matter that composed the log?