11.   Saturated hydrocarbons can burn to aldehydes, alcohols to organic acids, and aromatics to unsaturated compounds which are pungent and irritating.

12.   Sixteen passengers were burned to death.

13.   The cake was burnt to a cinder .

14.   The city of Tortona was burnt to the ground.

15.   The Grand Hotel had burnt to the ground.

16.   The headquarters was burnt to the ground.

17.   The house burnt to ashes.

18.   The meat was burned to a crisp.

19.   They then torched the building, burning it to the ground.

20.   This surface reaction of oxygen and carbon releases carbon monoxide which migrates outward and upon encountering oxygen burns to carbon dioxide.